Caleb discovers that Blunk took the key he was supposed to leave behind in Meridian for Vathek, so the girls go back to Meridian to return the key. Cedric and Phobos discover that Vathek is a spy for the rebel army. They plant the key on General Raythor so that he, instead of Vathek, will be thrown into the Abyss of Shadows. In the B-story, Hay Lin decides to create some new clothes for Caleb to help him blend in on Earth.

While helping out on Community Service Day, Will and Hay Lin find strange Meridian graffiti which the Mage identifies as belonging to a beast living in Heatherfield in human form. Will suspects her History teacher, Professor Collins, who is dating her mom. The girls form a plan to force the suspected monster into revealing his true form. It turns out Collins is not the beast. They fly him back home, accidentally dropping him onto trampolines and into swimming pools on more than one occasion. In the B-story, Cornelia's little sister torments her, but Cornelia gets her back in the end.