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THE ROOF SPACES
79

without waiting, ran swiftly through the incandescent glare towards the iron supports of the next range of wind-wheels. Graham, recovering from his astonishment, followed as fast, convinced of his imminent capture.

In a score of seconds they were within a tracery of glare and black shadows shot with moving bars beneath the monstrous wheels. Graham's conductor ran on for some time, and suddenly darted sideways and vanished into a black shadow in the corner of the foot of a huge support. In another moment Graham was beside him.

They cowered panting and stared out.

The scene upon which Graham looked was very wild and strange. The snow had now almost ceased; only a belated flake passed now and again across the picture. But the broad stretch of level before them was a ghastly white, broken only by gigantic masses and moving shapes and lengthy strips of impenetrable darkness, vast ungainly Titans of shadow. All about them, huge metallic structures, iron girders, inhumanly vast as it seemed to him, interlaced, and the edges of wind-wheels, scarcely moving in the lull, passed in great shining curves steeper and steeper up into a luminous haze. Wherever the snow-spangled light struck down, beams and girders, and incessant bands running with a halting, indomitable resolution passed upward and downward into the black. And with all that mighty activity, with an omnipresent sense of motive and design, this snow-clad desolation of mechanism seemed void of all human presence save themselves, seemed as trackless and deserted and unfrequented by men as some inaccessible Alpine snowfield.

"They will be chasing us," cried the leader. "We are scarcely halfway there yet. Cold as it is we must hide here for a space — at least until it snows more thickly again."

His teeth chattered in his head.

"Where are the markets?" asked Graham staring out. "Where are all the people?"