Marcella takes no notice of him handling one of the stones: it won't do any harm and he's to be trusted. "For recharging, yes. Trapping souls into a gem in the first place takes a certain skill with conjuration. It's not really my area of expertise: I just buy them already filled."

Felix is pretending not to shoot little glances their way, trying to catch Jim's reaction. He's going to get yellow paint on his face this way.