As good as it feels, Klaus startles a little when Drake presses the cool towel against the back of his neck, mostly because he wasn't expecting it. No one's ever really helped him when he was dealing with this sort of thing before, he doesn't really know the tricks - before Vietnam because they didn't care to, and during Vietnam...well, Dave hadn't been able to do as much as he wanted, didn't have the resources. Once he relaxes, he makes a soft groan into his hands, because it feels good. Really good.

Drake's reassurances remind him of Dave so much it hurts, and he feels his throat choking up a bit and his eyes sting and go hot with tears as that void opens up under him again, swallows him whole.

He holds his breath until the sensation passes, holds it down, stores it somewhere down under his diaphragm and lifts his head, gives Drake a little smile.

"I happened. Klaus Hargreeves, making bad life choices, truly a shocking turn of events. But no big deal, it's nothing I haven't dealt with before!"

His voice is light and purposefully jocular, he picks up the glass of water, his hand shaking, and takes a sip from it, then another, and a gulp because it feels so good sliding down his throat.