The pupils concentrated upon him with a singular significance, that was almost, he even thought, a reply to his glance, and yet it was as utterly unintelligible.

A moment later, however, it was explained.

He had fallen slightly behind in a new confusion of hesitation, wonder, and embarrassment, when from a wooded trail to the right, another horseman suddenly swept into the road before him.

He was a powerfully built man, mounted on a thoroughbred horse of a quality far superior to the ordinary roadster.

Without looking at Key he easily ranged up beside the coach as if to pass it, but Key, with a sudden resolution, put spurs to his own horse and ranged also abreast of him, in time to see his fair unknown start at the apparition of this second horseman and unmistakably convey some signal to him,--a signal that to Key's fancy now betrayed some warning of himself.