Percy Jackson and the Last Olympian

In the first scene of the novel, Percy and his fellow demigod Charles Beckendorf infiltrate Kronos’s ship. The latter is the Titan god of time, and he is leading the fight against the Olympians. Kronos has overtaken the body of Luke Castellan, a demigod who has bathed in the River Styx to become invulnerable. Although Percy and Charles succeed in blowing up the ship, Charles dies before he escapes.