Caleb Miller doesn't understand why vampires are the heroes of so many stories, since the two eighth-grade vampires at his middle school cause this seventh grade troll nothing but trouble. The vampires have turned all his friends into zombies to help them search for an ancient Stone of Power that will allow its possessor to control the world. Caleb and his friend Josie, a water sprite, are the only two who know what's really happening, but they can't figure out how to stop it. Unfortunately, Caleb and Josie are in Skylark Middle School's production of "A Christmas Carol" this year, along with...