Dick leaped beside me, raised a foot and kicked at the thing.

There was a flash of light and upon the instant he crashed down as though struck by a giant hand, lay sprawling and inert upon the floor.
There was a scream from Ruth; there was softly sibilant rustling all about her.

I saw her leap the crevice, drop on her knees beside Drake.
There was movement on the flagging where she stood.

A score or more of faintly shining, bluish shapes were marching there--pyramids and cubes and spheres like those forming the shape that stood before me.

There was a curious sharp tang of ozone in the air, a perceptible tightening as of electrical tension.
They swept to the edge of the fissure, swam together, and there, hanging half over the gap was a bridge, half spanning it, a weird and fairy arch made up of alternate cube and angle.