It was a job to which Urruah had taken with entirely too much relish, Rhiow thought privately, and she was at pains never to mention to him how much he seemed to be enjoying the responsibility. Does he see himself in this youngster, Rhiow thought, … does he see the wizard he might have been if he’d had this kind of supervision? But then, who among us wouldn’t see ourselves in him? The way you feel your way along among the uncertainties—and the way you try to push your paw just a little further through the hole, trying to get at what’s squeaking on the other side. Even if it bites you…

Arhu had picked himself up one more time, with no further mutters, and was putting his paws into the glowing weave again. You have to give him that, Rhiow thought: he always gets back up. “I’ve given the gate some parameters to work with already, though I’m not going to tell you what they are,” Urruah said. “I want you to find locations that match the parameters, and open the gate for visual patency, not physical.”

“Why not? If I can—”

“Visual-only is harder,” Rhiow said. “Physical patency is easy, when you’re using a pre-established gate: anyway, in a lot of them, the physical opening mechanism has become automated over time. Restricting the patency, refining control … that’s what we’re after, here.”

Arhu started hooking the control strings with his claws, slowly pulling each one out with care—which was as well: the gates were nearly alive, in some ways, and if misused or maltreated, they could bite. “I wish Saash was here,” Arhu muttered. “She was better at explaining this …”

“Than we are? Almost certainly,” Rhiow said.