Then slowly it inclined itself toward us; drew closer, closer to the ground; touched and lay there for an instant inert. Abruptly it vanished.
But well I knew what I had seen. The span over which we had passed had raised itself even as had the baby bridge of the fortress; had lifted itself across the chasm and dropping itself upon the hither verge had disintegrated into its units; was following us.
A bridge of metal that could build itself—and break itself. A thinking, conscious metal bridge! A metal bridge with volition—with mind—that was following us.
There sighed from behind a soft, sustained wailing; rapidly it neared us. A wanly glimmering shape drew by; halted. It was like a rigid serpent cut from a gigantic square bar of cold blue steel.
Its head was a pyramid, a tetrahedron; its length vanished in the further darkness. The head raised itself, the blocks that formed its neck separating into open wedges like a Brobdignagian replica of those jointed, fantastic, little painted reptiles the Japanese toy-makers cut from wood.
It seemed to regard us—mockingly. The pointed head dropped—past us streamed the body. Upon it other pyramids clustered—like the spikes that guarded the back of the nightmare Brontosaurus. Its end came swiftly into sight—its tail another pyramid twin to its head.
It FLIRTED by—gaily; vanished.
I had thought the span must disintegrate to follow—and it did not need to! It could move as a COMPOSITE as well as in UNITS. Move intelligently, consciously—as the Smiting Thing had moved.
“Come!” Norhala's command checked my thoughts; we fell in behind her. Looking up I caught the friendly sparkle of a star; knew the cleft was widening.
The star points grew thicker. We stepped out into a valley small as that hollow from which we had fled; ringed like it with heaven-touching summits. I could see clearly. The place was suffused with a soft radiance as though into it the far, bright stars were pouring all their rays, filling it as a cup with their pale flames.