AU: Percy likes comic books and when one shows him how to summon a demon he tries it. It was supposed to be a fake ritual but when it works and he summons not only a real demon but the prince of demons dubbed the Ghost King he's not sure whether to cry or check himself into the loony bin. Nico/Percy (Full Summary Inside)

Based on a prompt off tumblr... "we casually hook up at parties sometimes but this time you got so drunk you couldn't make it all the way back to your dorm so i let you crash in my room because it was closer and it turns out you're really cute when you wake up in the morning, fuck"