Olive is struggling to come to terms with what happened over the summer, more so because she doesn’t remember it. Her memory is a big hole, making the rumors of ghosts and mysterious movements in the night take a big step back and morphing her from a fun-loving student like the others, to a moody loner. Maps seems to be the only one who can break through the gloom, either because of her ignorance of whatever happened, or her enthusiasm for adventure and ghost hunting.
There are some true mysterious goings-on at GA, and Olive and Maps end up running right into them one night, following a map and a creepy tunnel in the school cemetery where masked cult member are…doing something. But what?