“If we are to go to Norwood, it would perhaps be as well to start at once,” I ventured to remark.

He laughed until his ears were quite red.

“That would hardly do,” he cried. “I don’t know what he would say if I brought you in that sudden way. No, I must prepare you by showing you how we all stand to each other. In the first place, I must tell you that there are several points in the story of which I am myself ignorant. I can only lay the facts before you as far as I know them myself.

“My father was, as you may have guessed, Major John Sholto, once of the Indian Army. He retired some eleven years ago and came to live at Pondicherry Lodge in Upper Norwood. He had prospered in India and brought back with him a considerable sum of money, a large collection of valuable curiosities, and a staff of native servants. With these advantages he bought himself a house, and lived in great luxury. My twin brother Bartholomew and I were the only children.

“I very well remember the sensation which was caused by the disappearance of Captain Morstan. We read the details in the papers, and knowing that he had been a friend of our father’s we discussed the case freely in his presence. He used to join in our speculations as to what could have happened. Never for an instant did we suspect that he had the whole secret hidden in his own breast, that of all men he alone knew the fate of Arthur Morstan.

“We did know, however, that some mystery, some positive danger, overhung our father. He was very fearful of going out alone, and he always employed two prize-fighters to act as porters at Pondicherry Lodge. Williams, who drove you tonight, was one of them. He was once lightweight champion of England. Our father would never tell us what it was he feared, but he had a most marked aversion to men with wooden legs. On one occasion he actually fired his revolver at a wooden-legged man, who proved to be a harmless tradesman canvassing for orders. We had to pay a large sum to hush the matter up. My brother and I used to think this a mere whim of my father’s, but events have since led us to change our opinion.

“Early in 1882 my father received a letter from India which was a great shock to him. He nearly fainted at the breakfast-table when he opened it, and from that day he sickened to his death. What was in the letter we could never discover, but I could see as he held it that it was short and written in a scrawling hand. He had suffered for years from an enlarged spleen, but he now became rapidly worse, and towards the end of April we were informed that he was beyond all hope, and that he wished to make a last communication to us.

“When we entered his room he was propped up with pillows and breathing heavily. He besought us to lock the door and to come upon either side of the bed. Then grasping our hands he made a remarkable statement to us in a voice which was broken as much by emotion as by pain. I shall try and give it to you in his own very words.