Genie smiles in return, a deviant flash of red lips and white teeth.

And then, in a sudden rush of motion, she buries the incredibly sharp tip of a small razor knife into the muscle of his arm; she drags the blade down, tearing it open, and then, with a hand at the center of his chest, she shoves him sharply away, drawing the door closed behind her.

"Today," she says, "We're going to try some new things. I do hope you're prepared to get messy."