You found an abandoned puppy on the side of the road and took it home to keep as a pet.

It wasn't until it started to sprout horns did you realize you, unwittingly, adopted a hellhound.

Now it’s too late to just get rid of him, so you stare at the puppy’s- well hellhound’s head, more specifically where the two tiny still growing horns are at. You’re both baffled by it and in disbelief at your luck.