Bio: Amos Treach was a pharmacist by trade and a warlock by avocation. He summoned the demon Krogg to Earth, thinking that he could make Krogg a servant to his will, he was sorely mistaken. Krogg was too powerful a demon to be subservient and went on a rampage that lasted for several days where he fed on the life-force of many people.
Wracked with guilt, Treach knew that if imprisoned, Krogg's power would be nullified, so he built a chamber deep in a cave in the woods and tricked Krogg into entering it. He slammed the door, with himself inside to ensure Krogg could escape, and locked it shut, leaving behind only a diary of his tale.