The Mark of AthenaUnknown - 2014
Uniting with Jason, Piper, and Leo after their dangerous quest, Percy, Hazel, and Frank wonder who will be chosen to fulfill the Prophecy of Seven, completing their group's number, and sail with them to an ancient land to find the mysterious Doors of Death.
Publisher: New York :, Disney/Hyperion Books,, 2014.
Edition: First U.S. paperback edition.
Branch Call Number: J RIOR
Characteristics: 586 pages : illustrations ; 20 cm.