Board Thread:Lords of Shadow 2/@comment-9249716-20131001232329/@comment-1362555-20131002131342

It could be either an illusion made by the castle or perhaps Zobek, him being the new Death and all, had the power to revive Carmilla for whatever reason.

There are so many possibilities, but we all have to accept that we won't know the answers for sure until late next February, even if that is a long time to wait.