- The inhabitants of Velen believe the expanse of caverns underneath the Devil's Pit are home to demons.
- Devil's Pit was originally a field hospital for plague victims and since Catriona questline was entirely cut, the area has been repurposed.
- It features an extensive cave system that is inaccessible by any conventional means in-game, because it is unfinished. Inside there is an isolated bed with candles around it - almost certainly the place of ritual involving Martin's body. Further into the cavern stands huge stone object, likely a sigil that was connected to demonic appearances.
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