Unfortunately, Blake is the only one who has of yet shown any capacity for magic. That alone makes him an expert in the eyes of the tall man. He stares at the sparkling text until it starts to fade and scatter, but a new line soon takes shape in its place. It has to be a trick, Wrench thinks. There's got to be some logical explanation for what he's seeing. So armed with the paper and the pen, he does just that.

By the time he's sliding back into his seat across from Blake, he's already midway into writing. You're saying anyone can do that? Show me how. He thrusts the paper back at Blake as though it's all the negotiation he means to entertain on the subject.