She knew where he'd been the moment her eyes adjusted to the dim light. A side room he built himself served as their private vault. All of their most dangerous artifacts and books were contained in that space. The echo of his fresh wards were easily detected by one who knew what to look for. Careful to undo his wards without setting off any kind of alarm or nasty defensive spell, she was able to open the door with little trouble. Either he trusted her to not use anything that they stored down there against him or it was all an elaborate plot to catch her doing something she shouldn't. No matter. She wasn't afraid of him.