Talk:Pinwheel/@comment-12.157.146.18-20121005041635/@comment-1687225-20121005055724

The speculation (I call it speculation because I can't seem to find any sources regarding this) is that Pinwheel was originally a servant or subordinate of Nito, and stole the Rite of Kindling from presumably Nito. He then escaped from Nito to the Catacombs to conduct experiments (notice how his room is filled with books and corpses).

Pinwheel's probably the most enigmatic boss. All the others have their backstories and can be explained with a little digging, but his lore is more difficult to find and follow.