Clary rolled her shoulders in a shrug. "I don't think so. Magic doesn't exist right?" A nagging sensation pulled at her chest as her question settled in the space between them; it was something like magic. Humans didn't do magic. That one fact seemed to be firm.

"Do you want to take a closer look at it?" As long as he gave it back she didn't mind. Clary knew that it was important. Just not why it was important.

What Clary didn't know was that the rock wouldn't glow if Sam held it. It was witchlight and it only glowed for a Shadowhunter.