"Aah, a thing," Rachel said, pushing her hands into the pockets of her hoodie as uncertainty set in. "I dunno if it's even gonna work."

"Rach," said Cai. "It's okay, we'll figure it out."

She smiled cautiously, and pulled a thin piece of worked glass from her pocket. "I want to know for sure how this broke," she said, passing it over for Cai to look at. He squinted it at as he turned it over in the light.

"I... see," he said. "I don't, really, but, okay. What was this?"

"A piece of a sculpture," Rachel said. "An arm I think."