He drew his pistol that he might be ready should Garay turn and attack, though he did not believe that he would do so, and sped after him.

But always the shadow flitted on before, and the distance between them did not seem to diminish.
They soon left all houses behind, although Robert, in his excitement, did not notice it, and then he saw that at last he was gaining.
"Stop, Garay! Stop, or I shoot!" he cried.
The spy halted, and Robert, covering him with his pistol, was about to approach when he heard a step behind him.

He whirled, but it was too late.

A stunning weight crashed down upon his head, and he fell into oblivion..