Uncovering American History: A Primary Source Investigation of the Salem Witch Trials
Investigating Atlantis and Other Lost Cities
Investigating Witches and Witchcraft
Do They Exist?: Do Haunted Houses Exist?
Investigating Zombies and the Living Dead
Investigating Ghosts and the Spirit World
Encyclopedia of the Zombie: The Walking Dead in Popular Culture and Myth
The Ghosts of Civil War Soldiers