"Well, if that is a concern like I said it would be with you," he says with a raised finger and a pointed return to that comment about Kaz being paranoid, "I can always arrange there to be a keystone. Something that you keep on your person that will allow you to come and go only when you have it. Anyone else without it would find themselves ejected back on the same side they attempted to step through. And if you wished to bring people with you one way or another, they'd have to maintain contact with you to make it through."

A crab claw is extended and aims to tap its pincer on the bridge of the soldier's shades. Dink. "These might be an idea."