His argument was a very forcible one, and during the remainder of the journey to London I sat back calmly reflecting upon it. It was a theory which had not before occurred to me, but I hesitated to accept it, because I could not believe that upon this woman who held me beneath the spell of her marvellous beauty could there rest any such hideous shadow of guilt. I remembered those clear blue eyes, that fair open countenance, and that frank manner of speech, and refused to give credence to my friend’s allegation.

Slowly passed the days. Summer heat increased and in London the silk-hatted world had already turned their thoughts towards the open fields and the sea-beach. The summer holidays were drawing near at hand. How much that brief vacation of a week or fortnight means to the toiling Londoner! and how much more to his ailing wife and puny family, doomed to live year after year in the smoke-halo of some black, grimy street into which the sun never seems to shine, or in some cheap, crowded suburb where the jerry-built houses stand in long, inartistic, parallel rows and the cheap streets swarm with unwashed, shouting offspring! I had arranged to take my holiday in winter and go down to the Riviera, a treat I had long since promised myself, therefore both Dick and I continued our work through those stifling days, obtaining from Boyd every now and then the results of his latest inquiries. These results, it must be said, were absolutely nil.

I had agreed with Dick to keep our suspicions entirely to ourselves, therefore we gave no information to Boyd, preferring to carry out our inquiries in our own method rather than seeking his aid. It was well, perhaps, that we did this, for the police too often blunder by displaying too great an energy. I was determined if possible to protect Eva.

At Riverdene, Dick and I were welcome guests and were often invited to Sunday river-parties, thus showing that any suspicions entertained of us in that quarter had been removed. Time after time I had met Eva, and we had on lots of occasions gone out on the river together, exploring over and over again that winding shaded backwater, and picking lilies and forget-me-nots at the spot where on that memorable evening we had first exchanged confidences.

I had received no invitation to The Hollies, but she had apologised, saying that the unusual heat had prostrated her mother, and that for the present they had been compelled to abandon their picnics. Many were the afternoons and evenings I idled away in a deck-chair on that well-kept lawn, or, accompanied by Mary, Eva, Cleugh and Fred Langdale, who, by the way, turned out to be an insufferable, over-dressed “bounder” who was continually dangling at Eva’s skirts, we would go forth and pay visits to various house-boats up and down stream.

Langdale looked upon me with a certain amount of jealousy, I think, and, truth to tell, was not, as I had imagined, of the milk-and-water genus. Eva seemed to regard him as a necessary evil, and used him as a tame cat, a kind of body servant to fetch and carry for her. From her remarks to me, however, I had known full well from the first that there was not a shadow of affection on her side. She had explained how she simply tolerated him because companions were few at Hampton and he was a fairly good tennis player, while he, on his part, was unconsciously making an arrant ass of himself in the eyes of all by his efforts to cultivate a drawl that he deemed aristocratic, and to carefully caressing his moustache in an upward direction.

Dick Cleugh, thorough-going Bohemian that he was, cared but little, I believe, for those riparian gatherings. True, he played tennis, rowed, punted and ate the strawberries and cream with as great a zest as any of us; nevertheless, I knew that he accepted the invitation with but one object, and that he would far rather have strolled in one of the parks with Lily Lowry than row Mary Blain up and down the stream.

Lily often came to our chambers. She was about twenty-two, of a rather Southern type of beauty, with a good figure, a graceful gait, and a decidedly London chic. She spoke, however, with that nasal twang which stamps the true South Londoner, and her expressions were not absolutely devoid of the slang of the Newington Butts. Yet withal she was a quiet, pleasant girl.

Thus half the month of July went by practically without incident, until one blazing day at noon, when, I went forth into Fleet Street for lunch, I unexpectedly encountered Dick, hot and hurrying, his hat tilted back. He had left home very early that morning to work up some “startling discovery” that had been made out at Plaistow, and already hoarse-voiced men were crying the “Fourth Comet” with the “latest details” he had unearthed.

In reply to his question as to where I was going, I told him that after luncheon I had to go down to Walworth to make some trifling inquiry, whereupon he said—