The Sea of Monsters by Rick Riordan

Cloth; Used. As New. Dust Jacket: Fine. The Sea of Monsters by Rick Riordan. First Edition/Ninth Printing. Young Adult Fiction/Greek Mythology.

"The second book in the Percy Jackson & The Olympians Series: When Thalia's tree is mysteriously poisoned, the magical borders of Camp Half-Blood begin to fail. Now Percy and his friends have just days to find the only magic item powerful to save the camp before it is overrun by monsters. The catch: they must sail into the Sea of Monsters to find it."