When Barnes came back, Bordman was asleep. And a last one hundred and fifty frozen sausages of brine and ship-fuel went out of Headquarters within a matter of hours. Then a vast quietude settled down everywhere. Young Barnes sat beside Bordman, menacing anybody who even thought of disturbing him. When Sandringham called for him Barnes went to the phone-plate. "Sir," he said with vast formality. "Mr. Bordman went five days without sleep. His job's done. I won't wake him, sir!" Sandringham raised his eyebrows. "You won't?" "I won't, sir!" said young Barnes. Sandringham nodded. "Fortunately," he observed, "nobody's listening. You are quite right." He snapped the connection. And then young Barnes realized that he had defied a Sector Chief, which is something distinctly more improper in a junior officer than merely trying to instruct him in topping off his vacuum-suit tanks. Twelve hours later, however, Sandringham called for him. "Barometer's dropping, Lieutenant. I'm concerned. I'm issuing a notice of the impending storm. Not everybody will crowd in on us, but a great many will. I'm explaining that the chemicals put into the bottom soil may not quite have finished their work. If Bordman wakens, tell him." "Yes, sir," said Barnes. But he did not intend to wake Bordman. Bordman, however, woke of himself at the end of twenty hours of sleep. He was stiff and sore and his mouth tasted as if something had kittened in it. Fatigue can produce a hangover, too. "How's the barometer?" he asked when his eyes came open. "Dropping, sir. Heavy winds. The Sector Chief has opened the Reserve Area to the civilians if they wish to come." Bordman computed dizzily on his fingers. A more complex instrument was actually needed, of course. One does not calculate on one's fingers just how long a one per cent dilute solution of ship-fuel in frozen brine has taken to melt, and how completely it has diffused through an upside-down swamp with the pressure of forty feet of soil on top of it, and therefore its effective concentration and dispersal underground. "I think," said Bordman, "it's all right. By the way, did they turn the irrigation systems hind end to?" Young Barnes did not know what this was all about. He had to send for information. Meanwhile he solicitously plied Bordman with coffee and food. Bordman grew reflective. "Queer," he said. "You think of the damage leaked ship-fuel can do. Setting off the rest of the store and all. Even by itself it rates some thousands of tons of TNT. I wonder what TNT was, before it became a ton-measure of energy? You think of it exploding in one place, and it's appalling! But think of all that same amount of energy applied to square miles of upside-down swamp. Hundreds or thousands of miles of upside-down swamp. D'you know, Lieutenant, on Soris II we pumped a ship-fuel solution onto a swamp we wanted to drain? Flooded it, and let it soak until a day came with a nice, strong, steady wind."