his own. There was a point which was puzzling him. He went through the hall to the front of the house and stood at the open door, looking out on to the drive. He and Cayley had run round the house to the left. Surely it would have been quicker to have run round to the right? The front door was not in the middle of the house, it was to the end. Undoubtedly they went the longest way round. But perhaps there was something in the way, if one went to the right—a wall, say. He strolled off in that direction, followed a path round the house and came in sight of the office windows. Quite simple, and about half the distance of the other way. He went on a little farther, and came to a door, just beyond the broken-in windows. It opened easily, and he found himself in a passage. At the end of the passage was another door. He opened it and found himself in the hall again.
"And, of course, that's the quickest way of the three," he said to himself. "Through the hall, and out at the back; turn to the left and there you are. Instead of which, we ran the longest way round the house. Why? Was it to give Mark more time in which to escape? Only, in that case—why run? Also, how did Cayley know then that it was Mark who was trying to escape? If he had guessed—well, not guessed, but been afraid—that one had shot the other, it was much more likely that Robert had shot Mark. Indeed, he had admitted that this was what he thought. The first thing he had said when he
