The way his eyes change is almost frightening. Beverly watches with no small measure of alarm, but her training as well as her experience serves her well enough in the moment not to forget herself. She studies her tricorder, never letting her attention stray from it or Merlin.

Once he has done it, she can hardly believe her readings. She needs to reach out and touch the silk, to feel it for herself. She exhales, and it sounds something like an awed "My!"

"I don't believe it!" she says, shaking her head. Her focus moves to the small bottle. "What is that?"