The Daemon of Repentance is a creature who lives with his four wicked brother Daemons in the Caves of the Daemons.
The Daemon of Repentance lives in the final cave, and visitors to his cave must first pass through the other caves, since repentance only comes after an evil thought or deed. The Daemon of Repentance is a pleasant fellow who gladly opens a little door from his cave, admitting visitors back out into the fresh air and sunshine.
Because Santa Claus is so generous, the children of the world were happy and stayed away from the Caves of the Daemons. The creatures kidnapped Santa Claus, hoping to sow unhappiness among the children of the world. Their plan failed when Santa's helpers were able to make the deliveries without him, and the Daemon of Repentance regretted their actions and released Santa. ("A Kidnapped Santa Claus")