'A succubus? This could be bad...' Taking his blade in one hand again, he started backing off a bit carefully, wondering if she really was dead, or 'asleep' somehow. That might explain some of the clothing, and some of the elaborate structure in the building. He wasn't sure if unsealing the tomb did anything, but he would back off slightly and wait a few moments, seeing if anything happened. He kind of wished she were awake however, such beauty was... incredibly rare, and it was a shame to waste it.