User blog comment:Long Patrol Girl/Essay: The Declining Mental Health of Antagonists of the Redwall Universe/@comment-1899244-20100220052813

I don't think Slagar was crazy. He didn't lie to Mattimeo about his experience. That was what he really thought happened. Asmodeus's poison drove him to think that he was right. He showed Mattimeo his face to prove a point and wanted to make Mattimeo suffer because he was the son of Matthias who, according to Slagar, caused him all the pain.