[Sync shakes his head at the mention of finding it]

No need. I've been there, and encountered the creature you're talking about. The Vernacht tried to break free of its seal last time it was night. I was there when it happened, with two companions. If it can truly take control of people...

[Then in a way, they got very, very lucky]

Thankfully it wasn't the creature that killed Spinel. We'd be in so much more trouble than anyone could handle if it had.