With injunctions that they should be telephoned to if Miss Turner awoke to consciousness, they left the hospital and dismissed Amélie, who went back to Grosvenor Street to pack and return to the hospital with some of Barbara’s belongings, so that she might find them there if they were needed.

“Now what I want is to see the constable who brought that young lady into the hospital,” Gimblet said to Jennins.

“So do I,” said the inspector. “He’s been sent for and should be at the Yard by now,” and they drove off in another taxi.

Police-Constable Matterson of S division had already arrived, and was awaiting them when they reached Scotland Yard. Jennins called him into his private office, and there, in response to their questions, he told his story.

“At about 2 a.m. on Wednesday morning,” said he, “it being a dark, wet night, with the rain pouring down like water out of a bucket, and the thunder claps as near overhead, and as frequent, as ever I heard, I was on duty near St. Mark’s Church just outside Regent’s Park. There is a small bridge for foot passengers across the canal opposite and I crossed it on my way to the outer circle of the Park. I was just resting a minute on the bridge, for I didn’t like to stay under the trees more than I need with that storm so close, when a flash of lightning that must have been almost over me, it was that bright, showed up the canal below, as I leant on the parapet, so clear that I could have counted every blade of grass. There was the canal winding out of sight, and the surface of it all jumping and hissing as the rain-drops hit it; and there were the banks on either side and the trunks of the trees lit up as light as day. But the thing that caught my eye was the sight of two people struggling on the bank, a few yards from the water. It was a man and a woman, and he seemed to be trying to catch hold of her round the neck, while she was dodging and defending herself as best she could. It was all very clear for half a second and then the dark swallowed everything up again, and the thunder burst, as it seemed, just on my head.

“Apart from what I had seen it seemed to me that folks wouldn’t be out for any good in that weather, and at that hour and place; and when the noise of the clap rumbled away I caught the sound of the tail end of a scream which made me sure of it. I turned my lantern towards the place and hollered back, running to get over the fence and down to the canal as I did so.

“As I came near to where I’d seen the pair, two successive flashes coming close one after the other showed them up again no more than a few yards away, and they saw me in the same instant. The man had got a great spade in his hand, and when he caught sight of me he lifted it up sideways and aimed a fearful blow at the woman with the edge of it. She ducked and dodged again—very active she was, poor thing—and he missed, so that the blade glanced off her shoulder and he as near as possible lost his balance. But he recovered himself at once and threw up his arms again with the spade clutched in both hands, as I saw by the second flash, and brought it down with all his force flat on the top of her head.

“I didn’t see her go down, for the light went before the blow had fallen, and in the dark I lost him, and he got clear away.

“While I was groping about with my lantern, I fell over the body of the girl, lying where he had struck her to the ground, and at the first start off I thought he had done for her sure enough. So I let her lie for a few minutes, while I blew my whistle and kept on searching around for the scoundrel. Two more of our men came up after a time and we had a regular hunt, but he’d got a good start and we never saw him. On turning our attention to the girl again, we found that she was still alive, though unconscious, so we got an ambulance and took her to the hospital. There was nothing to show who she was, but from her clothes I judged her to be one of the lowest and poorest class. I reported the occurrence at the time, and made a further search by daylight on the spot. I picked up the spade near by, where the fellow had evidently dropped it as he ran; it had a piece of stout cord attached to the handle about four or five feet long, but was otherwise without distinguishing mark of any kind. It’s outside, if you wish to see it, sir.”

Jennins told him to bring it in.