From publisher blurb:
This release of The Manual of Mutants & Monsters provides game stats on the Evangelist Kyton, better known to most as the Chain Devil. These preachers of pain and violence cross reality, seeking beings to torture and transform into their own at the end of their lashing chains and through their faith in torture.
Includes the evangelist kyton game stats, a brief on the kyton race, and three suggestions on how to include them in your game. There is also a new advantage and a new flaw included.