‘Denied first of all that he had ever left the study. But the maid was positive, and he pretended afterwards that he had forgotten just stepping out of the window to examine an unusual species of rose. Rather a weak story! And there’s fresh evidence against him come to light. Mr Davenheim always wore a thick gold ring set with a solitaire diamond on the little finger of his right hand. Well, that ring was pawned in London on Saturday night by a man called Billy Kellett! He’s already known to the police—did three months last autumn for lifting an old gentleman’s watch. It seems he tried to pawn the ring at no less than five different places, succeeded at the last one, got gloriously drunk on the proceeds, assaulted a policeman, and was run in in consequence. I went to Bow Street with Miller and saw him. He’s sober enough now, and I don’t mind admitting we pretty well frightened the life out of him, hinting he might be charged with murder. This is his yarn, and a very queer one it is.

‘He was at Entfield races on Saturday, though I dare say scarfpins was his line of business, rather than betting. Anyway, he had a bad day, and was down on his luck. He was tramping along the road to Chingside, and sat down in a ditch to rest just before he got into the village. A few minutes later he noticed a man coming along the road to the village, “dark-complexioned gent, with a big moustache, one of them city toffs”, is his description of the man.

‘Kellett was half concealed from the road by a heap of stones. Just before he got abreast of him, the man looked quickly up and down the road, and seeing it apparently deserted he took a small object from his pocket and threw it over the hedge. Then he went on towards the station. Now, the object he had thrown over the hedge had fallen with a slight “chink” which aroused the curiosity of the human derelict in the ditch. He investigated and, after a short search, discovered the ring! That is Kellett’s story. It’s only fair to say that Lowen denies it utterly, and of course the word of a man like Kellett can’t be relied upon in the slightest. It’s within the bounds of possibility that he met Davenheim in the lane and robbed and murdered him.’

Poirot shook his head.

‘Very improbable, mon ami. He had no means of disposing of the body. It would have been found by now. Secondly, the open way in which he pawned the ring makes it unlikely that he did murder to get it. Thirdly, your sneak-thief is rarely a murderer. Fourthly, as he has been in prison since Saturday, it would be too much of a coincidence that he is able to give so accurate a description of Lowen.’