It is rumored that a creature dwells deep within the Tonagg Bog (aka the Dread Bog) and hunts anyone who enters his territory.  This creature is commonly known as "the bog devil," though no one knows his true name or origin.

 

Favorite animal:  lost students

 

 

Image from Dread Bog.

The Bog Devil tossing a victim to the swampy creature, below.