Unaccompanied Demigods

This is a crossover fic between Percy Jackson and the Olympians, and Unaccompanied Minors and Mall Cop, but I couldn't add those into the categories. I own all the characters, because none of the characters from either story will be in. What happens when Demigods are unaccompanied? Especially when there's a robbery going on, it would mean bad, terrible, awful, things.