daylight. The murderer, whoever he was, must have had a fair amount of time in which to make himself scarce after the fatal shot had been fired. In all probability he had an exact knowledge of the surrounding country, and although the police in the district had been warned before the Inspector left Greystoke to keep an extra vigilance on all roads and to take note of any suspicious character, Bigswell did not hope for much in this direction. It was a lonely bit of coast, criss-crossed with tracks, well wooded a little way inland and sparsely inhabited. Besides, so far, he had no description to broadcast of the man or woman they were looking for. The Man with the Gaiters might have something to do with the crime, and enquiries would have to be made; on the other hand it might have been mere coincidence. Unfortunate, of course, if it brought the man under suspicion, but there was always the chance that he could explain his presence on the drive.
The footprints definitely puzzled him. He had hoped by an examination of the cliff-path to settle on some definite clue, some means of identification. Of course, either Mrs. Mullion or Ruth Tregarthan might have committed the crime. Neither of them were above suspicion. Both had been on the cliff-path at a late hour, apparently unobserved, and both had had the opportunity to shoot Tregarthan through the window. These were two further lines of enquiry which would have to be followed up.
Beyond this—what did he know? Tregarthan had been shot at by a person or persons outside the house and that one of the bullets fired, seemingly from an Army Service revolver, had entered his skull and killed him instantaneously. So far no evidence had come to light that he had any special enemies; neither was it possible, at the moment, to fix any definite motive for the crime. It was probable on the other hand, considering the nature of the crime, that it was a premeditated affair—a matter, without much doubt, of malice aforethought. The criminal must have known that Tregarthan was in that particular room at that particular time, for, with the curtains drawn, it was impossible to see in through the window. In some way (and Bigswell made a note of this point) the murderer had attracted Tregarthan's attention so that he moved to the french windows, drew back the curtains and looked out into the night, offering a clear target against the brilliant light of the room. This fact seemed to rule out the idea of a homicidal maniac. Of course, there was the chance that Tregarthan might have been watching the storm over the sea, but from what he had learnt from Pendrill and the Vicar he was inclined to rule out this supposition. Tregarthan was a man of rigid habit, precise, not particularly imaginative and with little appreciation of nature and natural phenomena. Bigswell felt that it would take more than a storm effect over the sea to move Tregarthan from an easy-chair, where he had, by evidence supplied, been reading the newspaper, and take him to the window. Yet something had lured him to the window. What?
By this time the Inspector had reached the circular patch of gravel in front of the severe, stone façade of Greylings. But instead of entering the house, he dodged right, through the dark clump of laurels, and followed the tiny path which led over a broken stile and thus down the north side of the garden wall. Reaching the wall he climbed over it and, switching on his torch, he made a minute inspection of the narrow cement strip which ran under the french windows. From this the grass dipped in a brief bank to the level of the lawn, forming a small terrace. The cement was still damp, and on its smooth surface, thrown into relief by the slanting rays of the torch, were numbers of tiny pieces of gravel!
The Inspector gave a muffled grunt of satisfaction, and with the industry of a pecking hen his fingers darted here and there, until he had a collection of these small pieces in his hand. He returned again
Katie Mac, Kathryn McNeill Crane