Klaus and Bill
He didn't hear Bill at first, not the sort of quiet relief in his tone or even the worst at all. Klaus was too caught up in his own head initially, right back in the rice fields and jungles of Vietnam all over again, the one place in the world he didn't want to be. It had been months since he'd left that place, and yet a few explosions and suddenly it was like he'd never left.
But Bill's voice filtered in slowly, breaking through that haze of trauma and pulling Klaus back into the moment. Even then though he wasn't at his best.
He reached for Bill, grabbing for him in one hand and holding tight to him. He felt like he'd just run a mile, his heart was racing and he was short of breath though all he'd done was press himself into a corner and stay there. That same fear was right back in him again, settling in against his chest, slipping in between his ribs and pressing down on him in that familiar suffocating sort of way that it had then in those early months when he realized he hadn't found a case full of money or drugs but instead the means to time travel.
"I- I can't - I can't, this isn't ... I gotta get out." He couldn't put the words together, they were rushed and fumbling, couldn't say what he was feeling or anything else other than that he needed out of this place of this situation and he didn't know how to do that.