Charlotte Skrimm likes her pudgy self. Likes her nerdy life. But her parents think a couple weeks at a teen summer camp will help her social adjustment to high school in the fall. After being hexed by Syl and learning to spy on shades, her social skills do expand, but mainly with the dead. Charlotte begins to pry open preternatural portals, conjure lost souls, and ultimately calls up Great Caesar''''s ghost and his long-dead legions to save her fellow campers Syl, TimTim, Hell, Qpid, and pretty much the world.