“Every crease is a story.”
by Rick Riordan
Open Library readers: 4.46 / 5 from 188 ratings. Separate from ratings here.Catalogue checked 2026-10-02.
After a year spent trying to prevent a catastropic war among the Greek gods, Percy Jackson finds his seventh-grade school year unnervingly quiet. His biggest problem is dealing with his new friend, Tyson—a six-foot-three, mentally challenged homeless kid who follows Percy everywhere, making it hard for Percy to have any "normal" friends.
But things don't stay quiet for long. Percy soon discovers there is trouble at Camp Half-Blood: The magical borders which protect Half-Blood Hill have been poisoned by a mysterious enemy, and the only safe haven for demigods is on the verge of being overrun by mythological monsters. To save the camp, Percy needs the help of his best friend, Grover, who has…
After a year spent trying to prevent a catastropic war among the Greek gods, Percy Jackson finds his seventh-grade school year unnervingly quiet. His biggest problem is dealing with his new friend, Tyson—a six-foot-three, mentally challenged homeless kid who follows Percy everywhere, making it hard for Percy to have any "normal" friends.
But things don't stay quiet for long. Percy soon discovers there is trouble at Camp Half-Blood: The magical borders which protect Half-Blood Hill have been poisoned by a mysterious enemy, and the only safe haven for demigods is on the verge of being overrun by mythological monsters. To save the camp, Percy needs the help of his best friend, Grover, who has been taken prisoner by the Cyclops Polyphemus on an island somewhere in the Sea of Monsters—the dangerous waters Greek heroes have sailed for millenia—only today, the Sea of Monsters goes by a new name...the Bermuda Triangle.
Now Percy and his friends—Grover, Annabeth, and Tyson—must retrieve the Golden Fleece from the Island of the Cyclopes by the end of the summer or Camp Half-Blood will be destroyed. But first, Percy will learn a stunning new secret about his family—one that makes him question whether being claimed as Poseidon's son is an honor or simply a cruel joke.
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Bibliographic source: Open LibraryThe Sea of Monsters is by Rick Riordan. The catalogue records its first publication in 2005. A later edition may have a different publication date on its copyright page.
The catalogue records 282 pages for a representative edition. Pagination varies with the publisher, format, type size and translation, so check the edition you intend to read.
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Check a copy's editionCreasy Spines ratings come from readers here. The separate Open Library score is 4.46 out of 5 from 188 ratings in our catalogue snapshot. It belongs to a different reader community and is not combined with our ratings.
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Look for a copyPercy Jackson and the Olympians: the Sea of Monsters
Penguin Books, Limited, 2025 / 304 pp.
ISBN 9780241742754
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Puffin, 2013 / 272 pp.
ISBN 9780141346847
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Puffin, 2013 / 272 pp.
ISBN 9780141346137
Percy Jackson and the Sea of Monsters
Penguin Publishing, 2010 / Ebook
ISBN 9780141926902
The Sea of Monsters
Disney Hyperion, 2009 / Ebook, 304 pp.
ISBN 9781423131960
The Sea of Monsters
Paw Prints, 2008 / Hardcover
ISBN 9781439542095
The Sea of Monsters
Disney Hyperion, 2008 / 279 pp.
ISBN 9781423103349
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