Summary

In The Mark of Athena, the third book of the Heroes of Olympus series, the adventure continues with an epic quest that unites characters from the previous books. After the events in The Son of Neptune, where Percy, Hazel, and Frank embarked on a perilous journey, this book introduces the convergence of their paths with Jason, Piper, and Leo. However, their group is incomplete, sparking the question of who will fulfill the Prophecy of Seven.

The Greek and Roman demigods must collaborate to defeat the giants unleashed by Earth Mother, Gaea. Their mission also includes sailing to an ancient land to find the Doors of Death, part of the prophecy that remains a mystery. This blend of mythological adventure and the quest for understanding underscores the importance of unity and bravery amidst unknown dangers.

Rick Riordan's storytelling weaves together a narrative filled with old and new allies, a marvelous ship, fearsome adversaries, and an exotic backdrop. The Mark of Athena is characterized by its exploration of friendship, courage, and the unknown, making it a compelling addition to the Heroes of Olympus series.