User blog comment:Varzan Deodinm Beldinm/Search and Destroy: Ooh, Oobleck you're Amazing!/@comment-10380701-20141003002012/@comment-23790511-20141003002358

I'd guess some form of primordial Grimm would understand human speech and is probably chillin underground. I suppose this sorta debunks the whole "hive mind" theory since different ages Grimm act differently.

What did you have in mind?