Heroes of Olympus, The, Book Five: Blood of Olympus, The-Heroes of Olympus, The, Book Five by Rick Riordan

As the battle between the gods and Titans reaches its climax, the seven demigods of the Prophecy of Seven must unite to face their greatest challenge. Percy Jackson, Annabeth Chase, Jason Grace, Piper McLean, Leo Valdez, Hazel Levesque, and Frank Zhang are split into two groups. One group must prevent the Greek and Roman gods from descending into chaos, while the other must confront the Titan army. With the fate of the world at stake, they face powerful enemies, including the giants and the twisted spirit of Gaea. The book concludes the epic journey with intense action, deepening relationships, and ultimate sacrifices, as the heroes strive to prevent the apocalypse and restore balance to the world.