The man attacked a young girl before he was discovered. He was found...well...gnawing on part of her leg!
Canis Mysterium is an adventure scenario for the Call of Cthulhu roleplaying system, designed to be played in one or more gaming sessions. This scenario is suitable as an introduction to a new campaign or can easily be worked into an established storyline. As written, this adventure is set in and near Arkham of October of 1930, making Chaosium's H.P. Lovecraft's Arkham supplement particularly helpful.
Several scenario seeds are offered to keepers who wish to expand and continue the events in this adventure, perhaps giving birth to a new campaign or providing handy subplot sessions to pre-existing campaigns.