Board Thread:General Grimm Discussion/@comment-1.175.95.73-20150528183119/@comment-26655494-20150910171158

Scout Trooper 164 wrote: Yes, because powerful Wesen all of a sudden can return from the dead. I've seen so many return without assistance or anything, they just return out of nowhere. She may be powerful, but when it comes to powers of staying alive, that's just low.

"Witches can use their magic to resurrect others or themselves."

- Here


 * And here

Point is, there have been countless records of witches (which, a Hexenbiest is basically just a wesen witch) resurrecting or coming back from the dead. Including sometimes as ghosts. It's not impossible that a witch comes back from the dead. No doubt with some sort of Zaubertrank.

I'm not saying this applies to Grimm. But it's not outrageously out of character. And there have been accounts of it (In the fiction world of course).