That, Ray knew, was about as high praise as Doug Yetsko could give anybody. He'd have liked to ask Doug more about Captain Prestonby--Doug could never seem to get used to the idea of his officer being a schoolteacher--but there was no time. The 'copter truck was already settling onto the roof. The watchman proved amenable to reason. He took one look at Yetsko, with three feet of weighted fire hose in his hand, and gulped, then accepted the two C-notes Yetsko gave him. They left a couple of Literates' guards with the vehicles, and Ray led the way to the fire escape, and down into the alley. A few hundred feet away, there was an iron grating which they pulled up. Ray drew the pistol he had gotten out of Captain Prestonby's arms locker and checked the magazine, chamber, and safety, knowing that Yetsko and the other guards were watching him critically, and then started climbing down the ladder. The conduit was halfway down. Yetsko, climbing behind him, examined it with his flashlight, probably wondering how he was going to fit himself into a hole like that. They climbed down onto the concrete walkway beside the conveyor belts, and in the dim light of the overhead lamps Ray could see that the two broad belts, to and from the store, were empty for as far as he could see in either direction. Normally, there should be things moving constantly in both directions--big wire baskets full of parcels for delivery, and trash containers, going out, and bales and crates and cases of merchandise, and empty delivery baskets and trash containers coming in. He pointed this out to Yetsko. "Sure," the big Literates' guards sergeant nodded. "They got control of the opening from the terminal, and they probably got a gang up at the other end, too," he shouted, over the noise of the conveyor belts. "I hope they haven't got into the basement of the store." "If they have, I know a way to get in," Ray told him. "You'd better stay here for about five minutes, and let me scout ahead. We don't want to run into a big gang of them ahead." Yetsko shook his head. "No, Ray; the captain told me I was to stick with you. I'll go along with you. And we better take another of these kids, for a runner, in case we have to send word back." "Ramon, you come with us," Ray said. "The rest of you, stay here for five minutes, and then, if you don't hear from us, follow us." "Mason, you take over," Yetsko told the guards corporal. "And keep an eye out behind you. We're in a sandwich, here; they're behind us, and in front of us. If anything comes at you from behind, send the kids forward to the next conduit port." Ray and Yetsko and Ramon Nogales started forward. Halfway to the next conduit port, there was a smear of lubricating oil on the concrete, and in it, and away from it in the direction of the store, they found footprints. It was Ramon Nogales who noticed the oil on the ladder to the next conduit port.