Make a desperate play; no matter how desperate! We were all desperate. The situation was almost as bad as it could be. Alan shook his head. "I think the more men we took, the less chance of success. There's no chance, Ed, to fight our way into the Turber city. We'll have to try to get there by our wits--just you and I. I was thinking--" He had a plan. We discussed it; elaborated it. We called on the audiphone here by our bed for Van Dyne. He was available. Luck was with us. He was where we wanted him to be, on the roof, on patrol duty. The least of the fighting so far had been on the city roof. The Turberites had made sorties, but often had abandoned the region they took. Van Dyne told us now: The Hoboken roof section was mainly in Turber hands. And Brooklyn. But this central Manhattan section and all north of it we held. Van Dyne was on the roof, over mid-lower-Manhattan. "We want to come up and see you," said Alan. "Where are you?" Alan told him our location in northern Westchester. "Can you order us transportation?" "Yes," he said. "But it's round-about. Only a few official lines running." "I know," said Alan. "Order us a guide to get us up to you. Hurry it, please." A guide appeared in our room in a moment. He led us out to a small rail-car. It whirled us south. Then by lift to the roof. An official transport car on a narrow-gauge roof-track was operating with emergency battery. It took us south, over the roof-top. * * * * * The roof spread like a great rolling expanse of rumpled canvas. Dark everywhere, with a few dotted lights. It never was level for very far. It rose in terraces, up and down, heaped up in peaks to cover huge, looming structures beneath. A roof, built haphazard, piecemeal, through many centuries. It rose to the right, over Hoboken, and ahead of us, over mid-Manhattan, it loomed in great terraced steps. The open sky was over us. It seemed so strange to be out in the open air! A black night, with heavy, sullen clouds. The roof surface was a dark metal labyrinth. Narrow metal roadways crossing it; viaducts, sometimes on stilts to strike a more level path; inclines up the terraces; footpaths and ladders. The air landing stages--all now abandoned--were up here. There were low metal towers at intervals; observation and instrument towers; occasional low metal buildings--the meteorological station; observatories; metal posts were set at points of vantage holding the image finders for the city mirrors; and there were occasional official kiosks covering the entrances downward to the city. And an intricate system of drainage sluiceways, with heat projectors to melt the winter snows.