The unseen pursuit--he had no doubt it was there--was becoming a terrible strain upon his nerves.
The perspiration ran down his face, and he sought with angry eyes for a sight of the fellow who presumed to hang upon his tracks.
He began to wonder what he would do when the night came.

There would be no rest, no sleep for him, even in the darkness.

Twice he curved from his course and hid in the undergrowth to see his pursuer come up, but there was nothing.

Then he reasoned with himself.

He had not really seen the flitting figure of a man.