MURDER After they had seen him in battle it seemed to Alcatraz that there might be some reason for the flight of the herd and yet now their running was only half-hearted; he could have raced in circles around them.

There was one change in their arrangement.

The grey mare was second, as before, but before her in place of the black ran the bay stallion who had stood down--wind from the rest when Alcatraz first saw them.

He, perhaps, might challenge the stranger as the former leader had done.

At any rate he should have the opportunity, for the fighting blood of Alcatraz was up and he would battle with every horse in the herd until he was accepted among them as an equal.