Board Thread:Episode Discussion/@comment-23712247-20160203074906/@comment-26339178-20160320062410

100.32.22.15 wrote:
 * sarcasm

Oh please, the prevelant theory is that the Grimm are like Darkspawn. They just showed up and started killing one day and that's how it's been ever since.

- Surana At least the Darkspawn had a plausible backstory.