"Hook Man." A malevolent water spirit in Teutonic folklore. His name refers to the hook he carries so that he might drag his victims down into the water.
- Bonnerjea, Biren. (1920). A Dictionary of Superstitions and Mythology. Thomson Gale.
- Rose, Carol. (1998). Spirits, Fairies, Leprechauns, and Goblins: An Encyclopedia. New York: W.W. Norton & Company, Inc.