“What moved them in the first place to try if the front door were open? It was a most unlikely thing that it should be. It was far more probable that they should at once try to force a window.”
“But all the windows on the ground floor are barred with iron shutters,” objected the commissary.
Poirot pointed to a window on the first floor.
“That is the window of the bedroom we have just come from, is it not? And see—there is a tree by which it would be the easiest thing in the world to mount.”
“Possibly,” admitted the other. “But they could not have done so without leaving footprints in the flower-bed.”
I saw the justice of his words. There were two large oval flower-beds planted with scarlet geraniums, one each side of the steps leading up to the front door. The tree in question had its roots actually at the back of the bed itself, and it would have been impossible to reach it without stepping on the bed.
“You see,” continued the commissary, “owing to the dry weather no prints would show on the drive or paths; but, on the soft mould of the flower-bed, it would have been a very different affair.”
Poirot went close to the bed and studied it attentively. As Bex had said, the mould was perfectly smooth. There was not an indentation on it anywhere.
Poirot nodded, as though convinced, and we turned away, but he suddenly darted off and began examining the other flower-bed.
“M. Bex!” he called. “See here. Here are plenty of traces for you.”