Mike turned out all lights in Complex save those in Warden’s residence, and reduced oxygen to gasping point—not killing point but low enough to insure that anyone looking for trouble would not be in shape. But in residence, oxygen supply was cut to zero, leaving pure nitrogen, and left that way ten minutes. At end of that time Finn’s men, waiting in p-suits at Warden’s private tube station, broke latch on airlock and went in, "shoulder to shoulder." Luna was ours.