Occasional escalators led upward. In advance of us was a narrow intersection. There were a few lights in the bullseyes of the subterranean dwelling rooms, but most of them were dark. "Easy, Snap. Not so fast." I pulled Snap to a walk. We edged over against the tunnel side. We had passed a small lighted audiphone cubby, evidently the one from which Dud and Shac had paged us. They should have been here waiting; but there was nothing but the empty, gloomy tunnels. "Something is coming!" Snap clutched at me; we drew our cloaks around us and waited in a shadowed recess. Down a side incline, a segment behind us, a small automatic food truck came lurching. It pulled up at an arcade entrance. Its driver slid the portals, deposited his cases of food, locked the panel after him; and in a moment he and his truck were gone up the incline. We heard, in the ensuing silence, a low groan near at hand; then abruptly it stopped. We saw, within twenty feet of us, two dark figures lying on the pavement grid in a black patch of shadow where the mailtube came down in a curve and disappeared into the tunnel wall. We bent over the figures of two men. They lay together, one half upon the other, black-garbed figures with white, staring faces. One twitched a little and then lay still. They were Shac and Dud Ardley. "Murdered, Gregg! Good Lord!" Both were dead, but we could see no marks on either of them. I found my wits. "Snap, we can't stand like this wholly visible." I pulled Snap away. We darted a few feet. The light of the tunnel intersection was directly over us. "Not here, Snap! Run!" Under the curving vacuum tube a little further along, we found shelter. Snap murmured: "The girls went past here. But which way, Gregg?" As though I knew! I felt at that moment, under the shirt against my skin, the anode of my audiphone tingling. A receiving signal! In the gloom, I could see Snap's white face as he watched me bring it out. We heard a tiny microphonic voice, Anita's voice. "Colonel Halsey. Yes I have the location. Lafayette 4--East corridor, lowest level. A descending entrance. Don't you speak again; I've only a minute! Venza safe--but send help. Something we don't understand--a strange mechanism here." Then Halsey's interrupting voice. "Anita, escape! You and Venza!" "We can't. They've got us!" "I'm sending men. They'll be there in ten minutes." "Ten minutes will be too late. Molo is...." It seemed that we heard her scream; then the waves blurred and died. Lafayette 4--East corridor, lowest level. "Snap, that's here! A descending entrance." We stood back against the great curving side of the postal vacuum tube. Within it I heard the hiss and clank as a mail cylinder flashed past. Halsey's secret orders must be going out now. His men nearest this place would come in a rush. But Anita said that would be too late.