Heart of the Universe: Discovery

Percy is visiting his stepdad's family in New Jersey when he meets a latino girl with blue highlights. She can't see through the Mist, and yet she seems to know more about monsters than Percy is comfortable with. Jim is settling in to his new home in New Jersey when Claire tells him she met a human and was suspicious, so she spied on him and caught him attacking a troll with a sword. In an awesome crossover for Percy Jackson and the Olympians and Trollhunters, vengeful goddesses discovers troll magic, Annabeth finds a kairosect, Claire uses Greek magic to reform a long-gone ally, and both Jim and Percy realize their world is has a hundredfold secrets they still have yet to uncover, and that some of them might destroy the world.