The spy, who knew the pass, led the way.

The column behind, although it was coming forward at a good pace, disappeared with remarkable quickness.

Dick, looking back, saw a dusky line of horsemen, and then he saw nothing.

He did not look back again.

His eyes were wholly for Shepard and the dim path ahead.
The aspect of the mountains, which had been so inviting before they came to them, changed wholly.