Chapter Eighteen Walking the Line After they had each taken a turn at watch and two turns at sleeping badly, they shared a few sips of water. They were all in silent agreement not to try for another set of watches; none of them was going to get any more sleep. Hazel and Valentina went to the far end of the room and managed the difficult business of Valentina getting into Hazel’s much smaller suit just enough to use the waste recycling system. The tunnels were long and they seemed likely to walk for days. There must be water somewhere, given the rats, but they didn’t want to bet too heavily on finding it. By the time they got back to their campsite, Kiyoshi had laid out a little breakfast from the food they had brought with them from the crashed balloon, mostly hard tack and tubes of var