A curtain had been drawn aside in the chaos ahead.

He was almost on the walls of the post--and the light gleamed from high, up, from the head of the stair! For a space he stood still, listening and watching.

There was no other light, no other sound after the barking of the dog.

About him the snow fell with fluttering noiselessness and it filled him with a sensation of safety.

The sharpest eyes could not see him, the keenest ears could not hear him--and he advanced again until before him there rose out of the gloom a huge shadowy mass that was blacker than the night itself.