"I am ready, my son," said Mercedes. Albert ran to fetch a carriage. He recollected that there was a small furnished house to let in the Rue de Saints Peres, where his mother would find a humble but decent lodging, and thither he intended conducting the countess. As the carriage stopped at the door, and Albert was alighting, a man approached and gave him a letter. Albert recognized the bearer. "From the count," said Bertuccio. Albert took the letter, opened, and read it, then looked round for Bertuccio, but he was gone. He returned to Mercedes with tears in his eyes and heaving breast, and without uttering a word he gave her the letter. Mercedes read: --

Albert, -- While showing you that I have discovered your plans, I hope also to convince you of my delicacy. You are free, you leave the count's house, and you take your mother to your home; but reflect, Albert, you owe her more than your poor noble heart can pay her. Keep the struggle for yourself, bear all the suffering, but spare her the trial of poverty which must accompany your first efforts; for she deserves not even the shadow of the misfortune which has this day fallen on her, and providence is not willing that the innocent should suffer for the guilty. I know you are going to leave the Rue du Helder Helder without taking anything with you. Do not seek to know how I discovered it; I know it -- that is sufficient.

Now, listen, Albert. Twenty-four years ago I returned, proud and joyful, to my country. I had a betrothed, Albert, a lovely girl whom I adored, and I was bringing to my betrothed a hundred and fifty louis, painfully amassed by ceaseless toil. This money was for her; I destined it for her, and, knowing the treachery of the sea I buried our treasure in the little garden of the house my father lived in at Marseilles, on the Allees de Meillan. Your mother, Albert, knows that poor house well. A short time since I passed through Marseilles, and went to see the old place, which revived so many painful recollections; and in the evening I took a spade and dug in the corner of the garden where I had concealed my treasure. The iron box was there -- no one had touched it -- under a beautiful fig-tree my father had planted the day I was born, which overshadowed the spot. Well, Albert, this money, which was formerly designed to promote the comfort and tranquillity of the woman I adored, may now, through strange and painful circumstances, be devoted to the same purpose. Oh, feel for me, who could offer millions to that poor woman, but who return her only the piece of black bread forgotten under my poor roof since the day I was torn from her I loved. You are a generous man, Albert, but perhaps you may be blinded by pride or resentment; if you refuse me, if you ask another for what I have a right to offer you, I will say it is ungenerous of you to refuse the life of your mother at the hands of a man whose father was allowed by your father to die in all the horrors of poverty and despair.

Albert stood pale and motionless to hear what his mother would decide after she had finished reading this letter. Mercedes turned her eyes with an ineffable look towards heaven. "I accept it," said she; "he has a right to pay the dowry, which I shall take with me to some convent!" Putting the letter in her bosom, she took her son's arm, and with a firmer step than she even herself expected she went down-stairs.

Our hope was that, by taking train, we might get to Beckenham as soon as or sooner than the carriage. On reaching Scotland Yard, however, it was more than an hour before we could get Inspector Gregson and comply with the legal formalities which would enable us to enter the house. It was a quarter to ten before we reached London Bridge, and half past before the four of us alighted on the Beckenham platform. A drive of half a mile brought us to The Myrtles — a large, dark house standing back from the road in its own grounds. Here we dismissed our cab and made our way up the drive together.

“The windows are all dark,” remarked the inspector. “The house seems deserted.”

“Our birds are flown and the nest empty,” said Holmes.

“Why do you say so?”

“A carriage heavily loaded with luggage has passed out during the last hour.”

The inspector laughed. “I saw the wheel-tracks in the light of the gate-lamp, but where does the luggage come in?”

“You may have observed the same wheel-tracks going the other way. But the outward-bound ones were very much deeper — so much so that we can say for a certainty that there was a very considerable weight on the carriage.”

“You get a trifle beyond me there,” said the inspector, shrugging his shoulders. “It will not be an easy door to force, but we will try if we cannot make someone hear us.”

He hammered loudly at the knocker and pulled at the bell, but without any success. Holmes had slipped away, but he came back in a few minutes.

“I have a window open,” said he.

“It is a mercy that you are on the side of the force, and not against it, Mr. Holmes,” remarked the inspector as he noted the clever way in which my friend had forced back the catch. “Well, I think that under the circumstances we may enter without an invitation.”

One after the other we made our way into a large apartment, which was evidently that in which Mr. Melas had found himself. The inspector had lit his lantern, and by its light we could see the two doors, the curtain, the lamp, and the suit of Japanese mail as he had described them. On the table lay two glasses, an empty brandy-bottle, and the remains of a meal.

“What is that?” asked Holmes suddenly.

We all stood still and listened. A low moaning sound was coming from somewhere over our heads. Holmes rushed to the door and out into the hall. The dismal noise came from upstairs. He dashed up, the inspector and I at his heels, while his brother Mycroft followed as quickly as his great bulk would permit.

Three doors faced us upon the second floor, and it was from the central of these that the sinister sounds were issuing, sinking sometimes into a dull mumble and rising again into a shrill whine. It was locked, but the key had been left on the outside. Holmes flung open the door and rushed in, but he was out again in an instant, with his hand to his throat.

“It’s charcoal,” he cried. “Give it time. It will clear.”