It's summer, and thirteen-year-old Aidan Cross and his best friends are planning to spend the night at the Witch House on Yeet Street. Aidan has desperately tried to talk his friends out of this plan, to no avail. But he has to admit it's exciting having sleepovers with his secret crush, Kai. Aidan has channeled his feelings into an ongoing fantasy saga about a fire mage named Nadia (Aidan spelled backwards) and a merman named Kai Pendragon...