Since the frost set in, I've cut the night watch back from four to two. I take the two remaining posts myself.

• TheoVice Master, you borrowed my lamp oil at two in the morning.
  RohanNext time I'll bring my own.
• VivianIf the Vice Master doesn't sleep, the tower doesn't sleep either. Should I measure that too?
  RohanIt would resolve itself if the Tower Master slept first.