Kaer Seren is a secluded, ancient stone fortress perched precariously on a jagged cliffside within the northern mountains of Kovir and Poviss. Serving as the historic headquarters and training grounds for the Witcher School of the Griffin, the keep was famous for its extensive library of magical scrolls and signs lore. The fortress met a tragic end when it was buried under a massive avalanche triggered by fanatical mages, leaving behind a frozen, haunted ruin filled with forgotten witcher secrets.