The powerful goddess Artemis has mysteriously vanished, and the entire Olympian Council is in an uproar. She was last seen hunting an ancient, terrifyingly rare monster, a beast so strong it could single handedly destroy Olympus forever. Now, she is believed to have been kidnapped, and the clock is ticking. Percy Jackson and his closest friends must track her down before the critical winter solstice, where her missing vote could spark a devastating war with the Titans. But the path to finding her is paved with new, incredibly dangerous threats and a heartbreaking prophecy that demands a terrible sacrifice. You will race alongside Percy, Annabeth, Thalia, and the fiercely independent Hunters of Artemis as they face their most chilling adventure yet. With time running out and the forces of evil gathering strength, the young demigods must push their powers to the absolute limit to prevent the world from falling into eternal ruin.