I turned around and followed the pipe back to the valve. I turned the wheel, causing the pipe to the dome to go cold and the one to the cave to heat up; maybe the door would be more compliant if the heat feed was turned off. I glanced behind me to where I estimated the dome to be from my current location. It looked like pretty long, frigid walk, and wasn't sure I wanted to do it without the warm pipe at my side. Heck, I wasn't sure I could do it.
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