"Oh, don't worry. Look."

Tenshi called one of her keystones (after all, weapons remained, and they certainly counted) and placed it in the middle of the room, in the air.

"I know exactly where it is, just have to fly back! Don't worry, I only endanger strong people so they get mad at me and fight me, I'd not endanger you on purpose."

And off she went, returning shortly after several minutes...