User blog comment:Zathronas/Speculative author: Where are the Grimm?/@comment-19933501-20140914035340/@comment-10380701-20140914043309

Most people generally refer to that thing as the Mother Grimm, or the Grimm Reaper. The leader and creator of the Grimms.

I personally like to think that the Mother Grimm is comparable to that of Nyarlathotep, a dark god that pretty much just exists to fuck with humanity.