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Jet Plane Mystery
Jet Plane Mystery

Chapter XV

Chapter 15 of Jet Plane Mystery is here in full — 137 sentences across 28 reading sections, with audio for every sentence and word.

Cover illustration for Jet Plane Mystery
Context Illustration Reading 1/27 · 5 lines
English subtitles · tap any word to listen 1 / 5
THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.
It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.
“Some plane!” he exclaimed, straining his eyes for one last glimpse of it.
A plane like that could change the whole science of aviation.
Yes, it’s a military secret, but whose secret?
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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.

Jet Plane Mystery

Chapter XV

Chapter 15 of Jet Plane Mystery is here in full — 137 sentences across 28 reading sections, with audio for every sentence and word.

Reading 1/27 · 5 reading units · Lines 1–5

Line 1
THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.
/ðə ˈsiː.krət bʊk ɑːn ðə ˈaɪlənd ʌv ˈmɪstəriz dʒæk wɑːtʃt wɪð ˌɪnˈkriːsɪŋ əˈstɑːnɪʃmənt æz ðə dʒet pleɪn sɔːrd əˈweɪ/
Line 2
It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.
/ɪt klaɪmd ʌp ənˈtɪl ɪt lʊkt tuː biː ðə saɪz ʌv ə stɑːr let aʊt ə skriːm ðen ˈfeɪdəd wɪð ðə spiːd ʌv saʊnd ˈɪntuː ðə bluː skaɪ/
Line 3
“Some plane!” he exclaimed, straining his eyes for one last glimpse of it.
/sʌm pleɪn hiː ɪkˈskleɪmd ˈstreɪnɪŋ hɪz aɪz fɔːr wʌn læst ɡlɪmps ʌv ɪt/
Line 4
A plane like that could change the whole science of aviation.
/ə pleɪn laɪk ðæt kʊd tʃeɪndʒ ðə hoʊl ˈsaɪəns ʌv ˌeɪviˈeɪʃən/
Line 5
Yes, it’s a military secret, but whose secret?

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.

aviation noun US /ˌeɪviˈeɪʃən/

the aggregation of a country's military aircraft

From this reading “A plane like that could change the whole science of aviation.”

increasing adjective US /ˌɪnˈkriːsɪŋ/

becoming greater or larger

From this reading “THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.”

jet noun US /dʒet/

an airplane powered by one or more jet engines

From this reading “THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.”

mysteries noun US /ˈmɪstəriz/

plural of “mystery” — something that baffles understanding and cannot be explained

From this reading “THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.”

plane noun US /pleɪn/

an aircraft that has a fixed wing and is powered by propellers or jets

From this reading “THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.”

scream verb US /skriːm/

utter a sudden loud cry

From this reading “It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.”

soared verb US /sɔːrd/

past form of “soar” — rise rapidly

From this reading “THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.”

straining noun US /ˈstreɪnɪŋ/

an intense or violent exertion

From this reading ““Some plane!” he exclaimed, straining his eyes for one last glimpse of it.”

Word partnerships in these lines

English keeps certain words together, and knowing the pair is worth more than knowing each word alone. Every partnership below was counted across our whole published library, and earns its place by appearing far more often than two unrelated words of the same frequency would.

Shown as this reading writes them, with the form the library counts, what kind of pairing it is, and how often it occurs.

blue sky adjective + noun

the sky as viewed during daylight

In this reading “It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.”

climbed up verb + adjective counted as “climb up”

go upward with gradual or continuous progress

In this reading “It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.”

soared away verb + particle counted as “soar away”

In this reading “THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.”

last glimpse adjective + noun

In this reading ““Some plane!” he exclaimed, straining his eyes for one last glimpse of it.”

On the island preposition + article + noun counted as “on … island”

In this reading “THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.”

All words in this reading · 59

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 It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

asconjunctionUS /æz/

at the same time that; because; in the way that

From this reading THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.

astonishmentnounUS /əˈstɑːnɪʃmənt/

the feeling that accompanies something extremely surprising

From this reading THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.

aviationnounUS /ˌeɪviˈeɪʃən/

the aggregation of a country's military aircraft

From this reading A plane like that could change the whole science of aviation.

awayadverbUS /əˈweɪ/

from a particular thing or place or position (“forth” is obsolete)

From this reading THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.

beauxiliary verbUS /biː/

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

From this reading It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

blueadjectiveUS /bluː/

of the color intermediate between green and violet; having a color similar to that of a clear unclouded sky

From this reading It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

BOOKnounUS /bʊk/

a written work or composition that has been published (printed on pages bound together)

From this reading THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.

butconjunctionUS /bʌt/

used to introduce something that contrasts with what came before

From this reading Yes, it’s a military secret, but whose secret?

changeverbUS /tʃeɪndʒ/

cause to change; make different; cause a transformation

From this reading A plane like that could change the whole science of aviation.

climbedverbUS /klaɪmd/

past form of “climb” — go upward with gradual or continuous progress

From this reading It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

couldmodal verbUS /kʊd/

the past of “can”; used for possibility or polite requests

From this reading A plane like that could change the whole science of aviation.

exclaimedverbUS /ɪkˈskleɪmd/

past form of “exclaim” — utter aloud; often with surprise, horror, or joy

From this reading “Some plane!” he exclaimed, straining his eyes for one last glimpse of it.

eyesnounUS /aɪz/

opinion or judgment

From this reading “Some plane!” he exclaimed, straining his eyes for one last glimpse of it.

fadedadjectiveUS /ˈfeɪdəd/

having lost freshness or brilliance of color

From this reading It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

forprepositionUS /fɔːr/

intended to be given to, or used by, somebody

From this reading “Some plane!” he exclaimed, straining his eyes for one last glimpse of it.

glimpsenounUS /ɡlɪmps/

a quick look

From this reading “Some plane!” he exclaimed, straining his eyes for one last glimpse of it.

hepronounUS /hiː/

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

From this reading “Some plane!” he exclaimed, straining his eyes for one last glimpse of it.

hisdeterminerUS /hɪz/

belonging to a man, boy, or male animal already mentioned

From this reading “Some plane!” he exclaimed, straining his eyes for one last glimpse of it.

increasingadjectiveUS /ˌɪnˈkriːsɪŋ/

becoming greater or larger

From this reading THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.

intoprepositionUS /ˈɪntuː/

moving to the inside of something

From this reading It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

islandnounUS /ˈaɪlənd/

a land mass (smaller than a continent) that is surrounded by water

From this reading THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.

ItpronounUS /ɪt/

a thing, animal, or idea already mentioned

From this reading It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

it's

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

From this reading Yes, it’s a military secret, but whose secret?

JacknounUS /dʒæk/

a small worthless amount

From this reading THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.

jetnounUS /dʒet/

an airplane powered by one or more jet engines

From this reading THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.

lastadjectiveUS /læst/

immediately past

From this reading “Some plane!” he exclaimed, straining his eyes for one last glimpse of it.

letauxiliary verbUS /let/

used to make a suggestion or a command including the speaker

From this reading It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

likeverbUS /laɪk/

prefer or wish to do something

From this reading A plane like that could change the whole science of aviation.

lookedverbUS /lʊkt/

past form of “look” — perceive with attention; direct one's gaze towards

From this reading It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

militaryadjectiveUS /ˈmɪləteri/

of or relating to the study of the principles of warfare

From this reading Yes, it’s a military secret, but whose secret?

mysteriesnounUS /ˈmɪstəriz/

plural of “mystery” — something that baffles understanding and cannot be explained

From this reading THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.

ofprepositionUS /ʌv/

belonging to, or connected with, somebody or something

From this reading THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.

OnprepositionUS /ɑːn/

touching and supported by a surface

From this reading THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.

onepronounUS /wʌn/

used to mean any person in general, including the speaker

From this reading “Some plane!” he exclaimed, straining his eyes for one last glimpse of it.

outadjectiveUS /aʊt/

not allowed to continue to bat or run

From this reading It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

planenounUS /pleɪn/

an aircraft that has a fixed wing and is powered by propellers or jets

From this reading THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.

sciencenounUS /ˈsaɪəns/

a particular branch of scientific knowledge

From this reading A plane like that could change the whole science of aviation.

screamverbUS /skriːm/

utter a sudden loud cry

From this reading It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

SECRETnounUS /ˈsiː.krət/

Something that is kept or meant to be kept unknown or unseen by others.

From this reading THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.

sizenounUS /saɪz/

the physical magnitude of something (how big it is)

From this reading It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

skynounUS /skaɪ/

the atmosphere and outer space as viewed from the earth

From this reading It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

soaredverbUS /sɔːrd/

past form of “soar” — rise rapidly

From this reading THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.

SomeadjectiveUS /sʌm/

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

From this reading “Some plane!” he exclaimed, straining his eyes for one last glimpse of it.

soundnounUS /saʊnd/

the particular auditory effect produced by a given cause

From this reading It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

speedverbUS /spiːd/

move hurridly

From this reading It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

starnounUS /stɑːr/

(astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior

From this reading It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

strainingnounUS /ˈstreɪnɪŋ/

an intense or violent exertion

From this reading “Some plane!” he exclaimed, straining his eyes for one last glimpse of it.

thatconjunctionUS /ðæt/

used to introduce what somebody said, thought, or felt

From this reading A plane like that could change the whole science of aviation.

THEdeterminerUS /ðə/

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

From this reading THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.

thenadverbUS /ðen/

subsequently or soon afterward (often used as sentence connectors)

From this reading It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

toparticleUS /tuː/

used before the base form of a verb to make the infinitive

From this reading It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

untilprepositionUS /ənˈtɪl/

up to a particular time

From this reading It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

upadjectiveUS /ʌp/

being or moving higher in position or greater in some value; being above a former position or level

From this reading It climbed up until it looked to be the size of a star, let out a scream, then faded with the speed of sound into the blue sky.

watchedverbUS /wɑːtʃt/

past form of “watch” — look attentively

From this reading THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.

wholeadjectiveUS /hoʊl/

including all components without exception; being one unit or constituting the full amount or extent or duration; complete

From this reading A plane like that could change the whole science of aviation.

whosedeterminerUS /huːz/

belonging to which person

From this reading Yes, it’s a military secret, but whose secret?

withprepositionUS /wɪð/

in the company of; together with

From this reading THE SECRET BOOK On the island of mysteries Jack watched with increasing astonishment as the jet plane soared away.

YesnounUS /jes/

an affirmative

From this reading Yes, it’s a military secret, but whose secret?

Chapter 15 of Jet Plane Mystery by Roy J. (Roy Judson) Snell holds 137 sentences, grouped into 28 reading sections of at most 5 sentences. The text is the source edition, 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 15 of Jet Plane Mystery contain?

Chapter 15 holds 137 sentences of Jet Plane Mystery, unabridged, divided into 28 reading sections.

This page carries chapter 15 of Jet Plane Mystery by Roy J. (Roy Judson) Snell exactly as it stands in the source edition, without abridgement. It runs to 137 sentences, grouped into 28 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 15 of Jet Plane Mystery?

Work through the 28 sections in order, replaying any sentence and tapping unfamiliar words for their entries.

Each of the 28 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 15 be read aloud to me?

Yes — every sentence and every individual word in chapter 15 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 Jet Plane Mystery

Common questions about reading Jet Plane Mystery by Roy J. (Roy Judson) Snell on this page, its source edition and its audio.

Is this the complete text of Jet Plane Mystery?

Yes. All 5068 sentences of Project Gutenberg eBook #57816 are kept, with a record of which sentences cover which part.

Which edition of Jet Plane Mystery is used?

Project Gutenberg eBook #57816, unabridged. The Project Gutenberg header, footer and licence are removed.

How long does Jet Plane Mystery take to read?

About 422 minutes of reading across 1014 sections of 5 sentences each, at an unhurried pace.

How to read Jet Plane Mystery section by section

How to work through Jet Plane Mystery section by section, using the audio and the tap-to-define vocabulary.

  1. Open a chapter

    Choose one of the 28 chapters of Jet Plane Mystery 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 Jet Plane Mystery

Words and structures a reader meets early in Jet Plane Mystery, each tappable for pronunciation and meaning.

Ensign
A word that appears in the opening chapter of Jet Plane Mystery; the reader can tap it to hear it and see its dictionary entry.
Steel
A word that appears in the opening chapter of Jet Plane Mystery; the reader can tap it to hear it and see its dictionary entry.
Whittling
A word that appears in the opening chapter of Jet Plane Mystery; the reader can tap it to hear it and see its dictionary entry.
Stick
A word that appears in the opening chapter of Jet Plane Mystery; the reader can tap it to hear it and see its dictionary entry.