Malcolm was sharply moved by the idea that Doc felt he contributed something beyond keeping them busy minding his problems. He didn't trust his voice just then, but he nodded his grateful acceptance of that.

He held Doc's gaze for a moment, then slowly turned to start walking again, still watching Doc sidelong.

"I'm worried about their games getting more dangerous. Neal said, in the Gull, there seemed to be a concerted effort to keep them awake. Sleep deprivation is a recognized form of torture under the Geneva Convention."