His disappointment is only for the absence of his brother, whose ghost — or so he thought — has given him guidance in the dark hours down here. It's not for Kell's presence behind him. He realizes that Kell has been watching over him in much the same way he thought Erik was. Even when they'd argued, throwing sharp words like fists, Kell made sure that he got something to eat, a little to drink. He tried his damndest to cure him of the fungus rotting his body and mind. And when that thing got loose and the cavern started crumbling around them, Wilhelm was the first person Kell looked for.

So, despite the tunnel choked dark and tight around them, and the vines brushing their groping hands, and all the unknowns that lie ahead, Kell's presence reassures him that this will be okay. They will be okay. Just keep going. Wilhelm focuses on that as they stumble through the passage, until finally they emerge.

Even the pale early dawn light stabs his eyes. Squinting and blinking, hugging his arms around his body, Wilhelm looks around. The cold is biting. The landscape is barren and white. But the sky stretches wide over them, and death and decay don't thicken the air. They're out.