"We go out with a rush!"
"Yes. Back to the girls. Use your ray-gun and the gravity projector in getting back to them and get away without me, if I fall."
"Same for you, Gregg."
We went down the deserted passage. We had had experience in movement on Wandl now; we handled ourselves more deftly. We went down several hundred feet. The passage branched, but there always seemed a main tunnel.
It was all deserted. There were distant, dimly-lighted, silent rooms. Were these factories of the strange forms of electronic gravity currents Wandl used? Some were in operation. A hum issued from them. Workers moved about.
We stopped to consult. The girls, and Molo himself, had described what we would find: a main route leading to the control room where the delicate mechanisms which operated all this were centralized, the nerve center of Wandl. It seemed that we were following that main route.
A worker came with a swimming leap past us. We dropped into a hollowed shadow at a tunnel intersection, and he went swooping by.
"Lord, Snap," I muttered, "that was too close for comfort."
Again we advanced. The tunnel turned sharply. Down a short slope, a glowing room was disclosed, with two or three workmen moving within it.
The main control room! We could not doubt it. Molo, in his enthusiasm, had once described it clearly to the girls, its great skeins of little thread-like wires spread upon the walls, the myriad tiny opalescent discs contacted with the small gray rock surface under the tangled masses of thread-wire, the levers and dials banked on the circular tables: they were unmistakable features.