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 ?" The other made no answer.
"_Look_!" whispered Graham, crouched close, and became very still.
The snow had suddenly become thick again, and sliding with the whirling eddies out of the black pit of the sky came something, vague and large and very swift.