Nico, thanks to his fatal flaw of holding grudges, managed to anger a certain goddess of the Hunt, who vows to cure the son of Hades of his affliction by sending him to the dude that Nico has the biggest crush on—er, I mean, the biggest grudge on. Oh, and did I mention that Artemis turned Nico into a jackalope? What IS a jackalope, anyway? (No, this isn't some weird furry thing.)