"Whoa, okay. Not okay," he said, rushing forward to keep Grey from keeling over entirely.

There was blood, a lot of it, and Grey's hand hung at an odd angle, but beyond that, Curtis didn't know how badly he was hurt.

Only, he knew exactly how badly Grey had been hurt. Curtis had allowed himself only a glimpse of him, lying dead with a knife in his heart.

"We need to get off at the next stop," he said, gritting his teeth as he glanced through the windows, warm sunlight streaking across their faces. "I know... It's crazy, but you've got to trust me. Can you stand?"