t, who was careful not to disturb the ground."

Perrichet beamed all over his rosy face, and Besnard nodded at him with
condescending approval.

"But I wish, M. le Commissaire"--and Hanaud pointed to a blur of
marks--"that your other officers had been as intelligent. Look! These
run from the glass door to the drive, and, for all the use they are to
us, a harrow might have been dragged across them."

Besnard drew himself up.

"Not one of my officers has entered the room by way of this door. The
strictest orders were given and obeyed. The ground, as you see it, is
the ground as it was at twelve o'clock last night."

Hanaud's face grew thoughtful.

"Is that so?" he said, and he stooped to examine the second set of
marks. They were at the righthand side of the door. "A woman and a
man," he said. "But they are mere hints rather than prints. One might
almost think--" He rose up without finishing his sentence, and he
turned to the third set and a look of satisfaction gleamed upon his
face. "Ah! here is something more interesting," he said.

There were just three impressions; and, whereas the blurred marks were
at the side, these three pointed straight from the middle of the glass
doors to the drive. They were quite clearly defined, and all three were
the impressions made by a woman's small, arched, high-heeled shoe. The
position of the marks was at first sight a little peculiar. There was
one a good yard from the window, the impression of the right foot, and
the pressure of the sole of the shoe was more marked than that of the
heel. The second, the impression of the left foot, was not quite so far
from the first as the first was from the window, and here again the
heel was the more lightly defined. But there was this difference--the
mark of the toe, which was pointed in the first instance, was, in this,
broader and a trifle blurred. Close beside it the right foot was again
visible; only now the narrow heel was more clearly defined than the
ball of the foot. It had, indeed, sunk half an inch into the soft
ground. There were no further imprints. Indeed, these two were not
merely close together, they were close to the gravel of the drive and
on the very border of the grass.

Hanaud looked at the marks thoughtfully. Then he turned to the
Commissaire.

"Are there any shoes in the house which fit those marks?"

"Yes. We have tried the shoes of all the women--Celie Harland, the
maid, and even Mme. Dauvray. The only ones w