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Tom Swift and His Big Tunnel
Tom Swift and His Big Tunnel

Chapter XXV · Chapter 25

Chapter 25 of Tom Swift and His Big Tunnel is here in full — 143 sentences across 29 reading sections, with audio for every sentence and word.

Cover illustration for Tom Swift and His Big Tunnel
Context Illustration Reading 1/28 · 5 lines
English subtitles · tap any word to listen 1 / 5
Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.
But the young inventor grasped Mr. Bumper by the arm.
"Better wait a bit," Tom suggested.
"There may be powder gas in there.
Some of it must have blown forward."
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AI-generated narration by OpenAI · Slow US English
LEARNER DICTIONARY
Archivist
/ˈɑːrkɪvɪst/
Editorial verification pending

A keeper or guardian of historical records and memories.

Tom Swift and His Big Tunnel

Chapter XXV · Chapter 25

Chapter 25 of Tom Swift and His Big Tunnel is here in full — 143 sentences across 29 reading sections, with audio for every sentence and word.

Reading 1/28 · 5 reading units · Lines 1–5

Line 1
Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.
Line 2
But the young inventor grasped Mr. Bumper by the arm.
/bʌt ðə jʌŋ ˌɪnˈventər ɡræspt ˈmɪstər ˈbʌmpər baɪ ðə ɑːrm/
Line 3
"Better wait a bit," Tom suggested.
/ˈbetər weɪt ə bɪt tɑːm səˈdʒestɪd/
Line 4
"There may be powder gas in there.
/ðer meɪ biː ˈpaʊdər ɡæs ɪn ðer/
Line 5
Some of it must have blown forward."
/sʌm ʌv ɪt mʌst hæv bloʊn ˈfɔːrwərd/

Learner Dictionary

These definitions explain words found in the current reading and keep every example grounded in its original sentence.

Oxford-style entry order: headword, part of speech, US IPA, concise definition, contextual example, and audio.

blast verb US /blæst/

make a strident sound

From this reading “Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.”

blown adjective US /bloʊn/

being moved or acted upon by moving air or vapor

From this reading “Some of it must have blown forward."”

Bumper noun US /ˈbʌmpər/

a glass filled to the brim (especially as a toast)

From this reading “But the young inventor grasped Mr. Bumper by the arm.”

gas noun US /ɡæs/

the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity

From this reading “"There may be powder gas in there.”

grasped verb US /ɡræspt/

past form of “grasp” — hold firmly

From this reading “But the young inventor grasped Mr. Bumper by the arm.”

inventor noun US /ˌɪnˈventər/

someone who is the first to think of or make something

From this reading “But the young inventor grasped Mr. Bumper by the arm.”

jagged adjective US /ˈdʒæɡəd/

having a sharply uneven surface or outline

From this reading “Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.”

scientist noun US /ˈsaɪəntɪst/

a person with advanced knowledge of one or more sciences

From this reading “Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.”

All words in this reading · 56

Every word in these five lines is listed here, and every one of them can be played on its own.

Dictionary details are shown only when verified; these are not licensed Oxford entries.

adeterminerUS /ə/

used before a singular noun to mean one of a group, when it is not a particular one

From this reading "Better wait a bit," Tom suggested.

armnounUS /ɑːrm/

a human limb; technically the part of the superior limb between the shoulder and the elbow but commonly used to refer to the whole superior limb

From this reading But the young inventor grasped Mr. Bumper by the arm.

beauxiliary verbUS /biː/

used with a past participle to form the passive, or with -ing for continuous tenses

From this reading "There may be powder gas in there.

beenauxiliary verbUS /bɪn/

the past participle of “be”

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

BetteradjectiveUS /ˈbetər/

(comparative of “good”) superior to another (of the same class or set or kind) in excellence or quality or desirability or suitability; more highly skilled than another

From this reading "Better wait a bit," Tom suggested.

bitnounUS /bɪt/

a small piece or quantity of something

From this reading "Better wait a bit," Tom suggested.

blastverbUS /blæst/

make a strident sound

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

blownadjectiveUS /bloʊn/

being moved or acted upon by moving air or vapor

From this reading Some of it must have blown forward."

BumpernounUS /ˈbʌmpər/

a glass filled to the brim (especially as a toast)

From this reading But the young inventor grasped Mr. Bumper by the arm.

ButconjunctionUS /bʌt/

used to introduce something that contrasts with what came before

From this reading But the young inventor grasped Mr. Bumper by the arm.

byprepositionUS /baɪ/

showing who or what does the action

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

cavenounUS /keɪv/

a geological formation consisting of an underground enclosure with access from the surface of the ground or from the sea

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

citynounUS /ˈsɪti/

a large and densely populated urban area; may include several independent administrative districts

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

declaredadjectiveUS /dɪˈklerd/

made known or openly avowed

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

excitedadjectiveUS /ɪkˈsaɪtəd/

(of persons) excessively affected by emotion

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

forprepositionUS /fɔːr/

intended to be given to, or used by, somebody

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

forwardadverbUS /ˈfɔːrwərd/

at or to or toward the front

From this reading Some of it must have blown forward."

gasnounUS /ɡæs/

the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity

From this reading "There may be powder gas in there.

graspedverbUS /ɡræspt/

past form of “grasp” — hold firmly

From this reading But the young inventor grasped Mr. Bumper by the arm.

greatadjectiveUS /ɡreɪt/

relatively large in size or number or extent; larger than others of its kind

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

Hadauxiliary verbUS /hæd/

the past form of “have”, used to form the past perfect

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

haveauxiliary verbUS /hæv/

used with a past participle to form the perfect tenses

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

hepronounUS /hiː/

a man, boy, or male animal already mentioned, as the subject

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

inprepositionUS /ɪn/

inside something, or within a place, period, or state

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

intoprepositionUS /ˈɪntuː/

moving to the inside of something

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

inventornounUS /ˌɪnˈventər/

someone who is the first to think of or make something

From this reading But the young inventor grasped Mr. Bumper by the arm.

itpronounUS /ɪt/

a thing, animal, or idea already mentioned

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

jaggedadjectiveUS /ˈdʒæɡəd/

having a sharply uneven surface or outline

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

lostadjectiveUS /lɔːst/

no longer in your possession or control; unable to be found or recovered

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

maymodal verbUS /meɪ/

used to say something is possible, or to give permission

From this reading "There may be powder gas in there.

MrnounUS /ˈmɪstər/

a form of address for a man

From this reading But the young inventor grasped Mr. Bumper by the arm.

mustmodal verbUS /mʌst/

used to say something is necessary, or almost certainly true

From this reading Some of it must have blown forward."

notadverbUS /nɑːt/

used to make a word, phrase, or sentence negative

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

ofprepositionUS /ʌv/

belonging to, or connected with, somebody or something

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

openedadjectiveUS /ˈoʊpənd/

used of mouth or eyes

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

overprepositionUS /ˈoʊvər/

above and across; more than

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

pellmell

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

pilenounUS /paɪl/

a collection of objects laid on top of each other

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

powdernounUS /ˈpaʊdər/

a solid substance in the form of tiny loose particles; a solid that has been pulverized

From this reading "There may be powder gas in there.

professornounUS /prəˈfesər/

someone who is a member of the faculty at a college or university

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

rocksnounUS /rɑːks/

plural of “rock” — a lump or mass of hard consolidated mineral matter

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

rushedadjectiveUS /rʌʃt/

done under pressure

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

scientistnounUS /ˈsaɪəntɪst/

a person with advanced knowledge of one or more sciences

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

searchingadjectiveUS /ˈsɜːrtʃɪŋ/

diligent and thorough in inquiry or investigation

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

SomeadjectiveUS /sʌm/

(quantifier) used with either mass nouns or plural count nouns to indicate an unspecified number or quantity

From this reading Some of it must have blown forward."

SuccessnounUS /səkˈses/

an event that accomplishes its intended purpose

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

suggestedverbUS /səˈdʒestɪd/

past form of “suggest” — make a proposal, declare a plan for something

From this reading "Better wait a bit," Tom suggested.

SwiftadjectiveUS /swɪft/

moving very fast

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

thedeterminerUS /ðə/

used before a noun that is already known, already mentioned, or the only one of its kind

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

ThereadverbUS /ðer/

in or at that place or location

From this reading "There may be powder gas in there.

TomnounUS /tɑːm/

male cat

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

waitverbUS /weɪt/

stay in one place and anticipate or expect something

From this reading "Better wait a bit," Tom suggested.

wasauxiliary verbUS /wɑːz/

the past form of “be” used with I, he, she, it, or a singular noun

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

whichpronounUS /wɪtʃ/

used to introduce a clause giving more about a thing just mentioned

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

wouldmodal verbUS /wʊd/

used for something imagined, polite, or habitual in the past

From this reading Success Had it not been for Tom Swift, the excited professor would have rushed pellmell over the jagged pile of rocks into the great cave which had been opened by the blast, the cave in which the scientist declared was the lost city for which he had been searching.

youngadjectiveUS /jʌŋ/

(used of living things especially persons) in an early period of life or development or growth

From this reading But the young inventor grasped Mr. Bumper by the arm.

Chapter 25 of Tom Swift and His Big Tunnel by Victor Appleton holds 143 sentences, grouped into 29 reading sections of at most 5 sentences. The text is the public-domain source, unabridged, and the chapter records which sentences cover which part of the work so that nothing is dropped. Every word can be tapped for its pronunciation and dictionary entry.

What does chapter 25 of Tom Swift and His Big Tunnel contain?

Chapter 25 holds 143 sentences of Tom Swift and His Big Tunnel, unabridged, divided into 29 reading sections.

This page carries chapter 25 of Tom Swift and His Big Tunnel by Victor Appleton exactly as it stands in the public-domain source edition, without abridgement. It runs to 143 sentences, grouped into 29 sections of at most 5 sentences so that a reader can take the chapter in steady, finishable pieces. The chapter also stores a coverage record mapping every one of its sentences to a part of the work, which is how the edition demonstrates that no line was dropped.

How do I study chapter 25 of Tom Swift and His Big Tunnel?

Work through the 29 sections in order, replaying any sentence and tapping unfamiliar words for their entries.

Each of the 29 sections in this chapter is short enough to read once, hear once, and then re-read with the vocabulary in view. Tapping a word plays it alone and opens its dictionary entry with IPA, part of speech and meaning, so the reader is never forced to guess a pronunciation from spelling. Working section by section keeps a long chapter from becoming an undifferentiated wall of text, which is the usual reason a reader abandons a work of this period.

Can chapter 25 be read aloud to me?

Yes — every sentence and every individual word in chapter 25 can be played aloud in United States English.

Audio covers the whole chapter: any sentence can be played, and any single word within it can be played on its own. The voice uses United States English. For a work of this period that matters, because spelling is an unreliable guide to pronunciation for vocabulary that has fallen out of daily use, and a learner who guesses wrong tends to keep the error. Hearing the word in its own sentence, and then alone, settles it.

Questions about reading Tom Swift and His Big Tunnel

Common questions about reading Tom Swift and His Big Tunnel by Victor Appleton on this page, its source edition and its audio.

Is this the complete text of Tom Swift and His Big Tunnel?

Yes. All 3230 sentences of Project Gutenberg eBook #953 are kept, with a record of which sentences cover which part.

Which edition of Tom Swift and His Big Tunnel is used?

Project Gutenberg eBook #953, a public-domain edition. The Project Gutenberg header, footer and licence are removed.

How long does Tom Swift and His Big Tunnel take to read?

About 269 minutes of reading across 646 sections of 5 sentences each, at an unhurried pace.

How to read Tom Swift and His Big Tunnel section by section

How to work through Tom Swift and His Big Tunnel section by section, using the audio and the tap-to-define vocabulary.

  1. Open a chapter

    Choose one of the 25 chapters of Tom Swift and His Big Tunnel to begin.

  2. Read one section

    Each section holds 5 sentences; read it once through.

  3. Listen and tap

    Play the section aloud, then tap any unfamiliar word for its entry.

Vocabulary met early in Tom Swift and His Big Tunnel

Words and structures a reader meets early in Tom Swift and His Big Tunnel, each tappable for pronunciation and meaning.

Swift
A word that appears in the opening chapter of Tom Swift and His Big Tunnel; the reader can tap it to hear it and see its dictionary entry.
Seated
A word that appears in the opening chapter of Tom Swift and His Big Tunnel; the reader can tap it to hear it and see its dictionary entry.
Laboratory
A word that appears in the opening chapter of Tom Swift and His Big Tunnel; the reader can tap it to hear it and see its dictionary entry.
Engaged
A word that appears in the opening chapter of Tom Swift and His Big Tunnel; the reader can tap it to hear it and see its dictionary entry.