Chapter I

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

From this reading 1120 Avenue of the Americas New York 36, N.Y.

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

From this reading This Ace edition follows the text of the first hard-cover book edition, originally published in 1931.

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

From this reading 1120 Avenue of the Americas New York 36, N.Y.

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

From this reading Hadron of Hastor was at the controls, hatching a rescue plan that required unusual daring and great ingenuity.

the smallest whole number or a numeral representing this number

From this reading ACE BOOKS, INC.

plural of “america” — North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776

From this reading 1120 Avenue of the Americas New York 36, N.Y.

the form of “a” used before a word that begins with a vowel sound

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

used to join words or parts of a sentence that go together

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

an old form of “are”, used with “thou”

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

in or near a particular place or position

From this reading Hadron of Hastor was at the controls, hatching a rescue plan that required unusual daring and great ingenuity.

a line of approach

From this reading 1120 Avenue of the Americas New York 36, N.Y.

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

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

the past participle of “be”

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

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

From this reading This Ace edition follows the text of the first hard-cover book edition, originally published in 1931.

Bound written or printed works.

From this reading ACE BOOKS, INC.

showing who or what does the action

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

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

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

plural of “control” — power to direct or determine

From this reading Hadron of Hastor was at the controls, hatching a rescue plan that required unusual daring and great ingenuity.

provide with a covering or cause to be covered

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

a challenge to do something dangerous or foolhardy

From this reading Hadron of Hastor was at the controls, hatching a rescue plan that required unusual daring and great ingenuity.

increase twofold

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

the form in which a text (especially a printed book) is published

From this reading This Ace edition follows the text of the first hard-cover book edition, originally published in 1931.

preceding all others in time or space or degree

From this reading This Ace edition follows the text of the first hard-cover book edition, originally published in 1931.

someone who travels by air

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

third-person singular of “follow” — to travel behind, go after, come after

From this reading This Ace edition follows the text of the first hard-cover book edition, originally published in 1931.

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

From this reading Hadron of Hastor was at the controls, hatching a rescue plan that required unusual daring and great ingenuity.

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

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

any elementary particle that interacts strongly with other particles

From this reading Hadron of Hastor was at the controls, hatching a rescue plan that required unusual daring and great ingenuity.

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

From this reading This Ace edition follows the text of the first hard-cover book edition, originally published in 1931.

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

From this reading Hadron of Hastor was at the controls, hatching a rescue plan that required unusual daring and great ingenuity.

the production of young from an egg

From this reading Hadron of Hastor was at the controls, hatching a rescue plan that required unusual daring and great ingenuity.

a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

artwork that helps make something clear or attractive

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

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

From this reading This Ace edition follows the text of the first hard-cover book edition, originally published in 1931.

a heterogeneous collection of groups united in their opposition to Saddam Hussein's government of Iraq; formed in 1992 it is comprised of Sunni and Shiite Arabs and Kurds who hope to build a new government

From this reading ACE BOOKS, INC.

the power of creative imagination

From this reading Hadron of Hastor was at the controls, hatching a rescue plan that required unusual daring and great ingenuity.

impossible or nearly impossible to see; imperceptible by the eye

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

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

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

a son who has the same first name as his father

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

inflected form of “kidnap” — take away to an undisclosed location against their will and usually in order to extract a ransom

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

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

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

plural of “moon” — the natural satellite of the Earth

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

of an obscure nature

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues

From this reading 1120 Avenue of the Americas New York 36, N.Y.

not of long duration; having just (or relatively recently) come into being or been made or acquired or discovered

From this reading 1120 Avenue of the Americas New York 36, N.Y.

belonging to, or connected with, somebody or something

From this reading 1120 Avenue of the Americas New York 36, N.Y.

in an original manner

From this reading This Ace edition follows the text of the first hard-cover book edition, originally published in 1931.

one side of one leaf (of a book or magazine or newspaper or letter etc.) or the written or pictorial matter it contains

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

have the will and intention to carry out some action

From this reading Hadron of Hastor was at the controls, hatching a rescue plan that required unusual daring and great ingenuity.

The daughter of a monarch; a female member of a royal family.

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

prepared and printed for distribution and sale

From this reading This Ace edition follows the text of the first hard-cover book edition, originally published in 1931.

necessary for relief or supply

From this reading Hadron of Hastor was at the controls, hatching a rescue plan that required unusual daring and great ingenuity.

free from harm or evil

From this reading Hadron of Hastor was at the controls, hatching a rescue plan that required unusual daring and great ingenuity.

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

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

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

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

inflected form of “speed” — move hurridly

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

understood in a certain way; made sense of

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

the words of something written

From this reading This Ace edition follows the text of the first hard-cover book edition, originally published in 1931.

used to introduce what somebody said, thought, or felt

From this reading Hadron of Hastor was at the controls, hatching a rescue plan that required unusual daring and great ingenuity.

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

From this reading 1120 Avenue of the Americas New York 36, N.Y.

used for a person or thing that is near, or that has just been mentioned

From this reading This Ace edition follows the text of the first hard-cover book edition, originally published in 1931.

a heading that names a statute or legislative bill; may give a brief summary of the matters it deals with

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

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

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

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

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

below or beneath something; less than

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

not usual or common or ordinary

From this reading Hadron of Hastor was at the controls, hatching a rescue plan that required unusual daring and great ingenuity.

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

From this reading Hadron of Hastor was at the controls, hatching a rescue plan that required unusual daring and great ingenuity.

in or at the place that

From this reading _Cover art and title page illustration by Roy Krenkel, Jr._ Under the double moons of Barsoom, an invisible flier sped to the mysterious city of Jahar where Sanoma Tora, the kidnapped princess of Helium had been taken.

a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys

From this reading 1120 Avenue of the Americas New York 36, N.Y.

the English royal house (a branch of the Plantagenet line) that reigned from 1461 to 1485; its emblem was a white rose

From this reading 1120 Avenue of the Americas New York 36, N.Y.