Quest for Thanatos

A quest taken up by Fank Zhang, Percy Jackson, and Hazel Levesque to save the god Thanatos from Alcyoneus and prevent the destruction of Camp Jupiter by Polybotes in The son of Neptune. The prophecy was ironically given by Mars to the augur Octavian, during his visit to Camp Jupiter

"Go to Alaska. Find Thanatos and free him.' Come back by sundown on June twenty-fourth or die."