"A dimensional shunt," Corrival repeated patiently. "I didn't know it was possible until about a week ago, but it is. Dimensional shunters are sorcerers who can cross dimensions. Apparently they can also bring parts of one dimension into another to use as a kind of cloak."

There was something strange about the man's eyes. Had they changed colour, or was it just the changing light? Corrival found he couldn't be sure.

"I think it's the Atlantic," he added absently, "but I don't recall asking. And because if it was the name you were born with, it means someone could potentially control you with it." He rubbed his short hair ruefully with the one Matthew had declined to take. "Losing my touch, to ask your name outright like that, with you being so obviously new and all. Sorry about that. But I'd think about introducing yourself to anyone else using something else. Names are power. The Tir's meant to be a place where things like that don't happen, but ..." He shrugged. "No need to be reckless."