Some kids think tombs are spooky, but Jonathan is intrigued by them. The imposing tombstones seem unmovable, but THE GRAVECHANGERS beneath them can get out and they want to pull Jonathan into their dark world!

Zach's sister can be a pest. Especially when he invites a friend over. In HAUNTING AT HOWLING OAK, she invites a strange friend of her own. Supernatural accidents start to happen, and Zach must find a way to stop them.

Something isn't right with Mary, the new girl at school who is Sharon's science project partner. In THE HOUSE IN THE MIST, Sharon learns why Mary is odd, and what goes on in the family lab.