
The Last Olympian
By Rick RiordanEntering his final year at Camp Half Blood, Percy Jackson and his friends are preparing for war against Chronos’ army. As the time before war ticks down, Percy must learn the secrets of Achilles and the River Styx to face Chronos in battle. Percy relies on the son of Hades, Nico D'Angelo to guide him through the Underworld so that he may find triumph in the battle.