All the physical issues Kirk had, and they never even would have known if the switch hadn't happened. Karl was glad for Chris, that he felt healthy and good again, but it was tempered by the sobering notion that Kirk would be back to dealing with that.

Karl clapped Chris on the shoulder, which turned into a bit of an affectionate sideways hug before he let go. "Let's go find Zach, huh?"

He'd be... with Uhura. Oh, boy. Again. He hoped for Zach's sake they'd put some clothes on before they'd gone to bed.