Arnold Du Cane, the round-faced man who spoke, was rather short and stout, with ruddy cheeks, a small moustache and a prematurely bald head--a man whose countenance showed him to be a _bon vivant_, but whose quick, shifty eyes would have betrayed to a close observer a readiness of subterfuge which would have probably aroused suspicion. His exterior was that of a highly refined and polished man. His grey tweed suit bore evidence of having been cut by a smart tailor, and as he lolled back in his big saddle-bag chair he contemplated the fine diamond upon his white, well-manicured hand, and seemed entirely at his ease. That August afternoon was stiflingly hot, and through the open French windows leading into the old-world garden, so typically English with its level lawns, neatly trimmed box-hedges and blazing flowerbeds, came the drowsy hum of the insects and the sweet scent of a wealth of roses everywhere. The pretty house in which his host, Philip Poland, alias Louis Lessar, lived, stood back a little distance from the London road, two miles or so out of the quiet market-town of Andover, a small picturesque old place surrounded by high old elms wherein the rooks cawed incessantly, and commanding extensive views over Harewood Forest and the undulating meadow-lands around, while close by, at the foot of the hill, nestled a cluster of homely thatched cottages, with a square church-tower, the obscure village of Middleton. In that rural retreat lived the Honourable Philip Poland beneath a cloak of highest respectability. The Elms was, indeed, delightful after the glare and glitter of that fevered life he so often led, and here, with his only child, Sonia, to whom he was so entirely devoted, he lived as a gentleman of leisure. Seldom he went to London, and hardly ever called upon his neighbours. With Sonia he led a most retired existence, reading much, fishing a little, and taking long walks or cycling with his daughter and her fox-terrier, "Spot," over all the country-side. To the village he had been somewhat of a mystery ever since he had taken the house, three years before. Yet, being apparently comfortably off, subscribing to every charity, and a regular attendant at Middleton church, the simple country-folk had grown to tolerate him, even though he was somewhat of a recluse. Country-folk are very slow to accept the stranger at his own valuation. Little did they dream that when he went away each winter he went with a mysterious purpose--that the source of his income was a mystery.