An all-night read-a-thon at the Sleepy Hollow Elementary School turns into a treasure hunt when the kids read about hidden treasure in the school basement.
Cassidy, feeling left out at Ghostville Elementary, finds a creepy old doll that even the ghosts seem to be afraid of, and soon realizes she has the power to learn ghostly secrets.
The ghosts of Sleepy Hollow Elementary, bored with living in the basement, decide to cause some trouble in the school, but agree to go back where they belong only if Jeff, Cassidy, and Nina beat them in a game of basketball.
Nina, a student at Sleepy Hollow Elementary, must figure out what is going on when it appears that someone or something is trying to sabotage her birthday party.
