After Jason Grace Died, The Hunters of Artemis turned evil. They even turned on Thalia and Reyna They destroyed Camp Halfblood, and now they're hunting demigods. A demigod that goes by his surname, Prince, has taken it upon himself to hide other demigods from the hunters in his large underground bunker, Hazel was hiding in Cohort 5 in Camp Jupiter she was the only one left in Camp Jupiter, she was missing everyone she cared about, the hunters had already taken Frank, Nico, Will, Reyna, Percy, Annabeth, Piper, Thalia, Hylla, Leo, and Calypso