World Mythologies: Myths of the Norsemen
True Tales of Terror: And the Cat Came Back: True Tales of Animal Spirit Hauntings
World Mythologies: Myths of the Native Americans
True Tales of Terror: Creepy But True: Tales for the Campfire
World Mythologies: Myths of the Aztecs
Do They Exist?: Do Aliens Exist?
Do They Exist?: Do Vampires Exist?
Investigating Ghosts and the Spirit World
Folktales and Fairy Tales: Traditions and Texts from around the World
Do They Exist?: Do Dragons Exist?
Investigating Atlantis and Other Lost Cities
Investigating the Abominable Snowman and Other Legendary Beasts
Do They Exist?: Do Ghosts Exist?
Do They Exist?: Do Haunted Houses Exist?
Gods & Goddesses of Ancient China
Investigating Witches and Witchcraft
Investigating Zombies and the Living Dead