At the same moment, and in the midst of the terrifying silence which usually follows a clap of thunder, they heard a knocking at the door. Caderousse and his wife started and looked aghast at each other. `Who's there?' cried Caderousse, rising, and drawing up in a heap the gold and notes scattered over the table, and which he covered with his two hands. -- `It is I,' shouted a voice. -- `And who are you?' -- `Eh, pardieu, Joannes, the jeweller.' -- `Well, and you said I offended the good God,' said La Carconte with a horrid smile. `Why, the good God sends him back again.' Caderousse sank pale and breathless into his chair. La La Carconte, on the contrary, rose, and going with a firm step towards the door, opened it, saying, as she did so -- `Come in, dear M. Joannes.' -- `Ma foi,' said the jeweller, drenched with rain, `I am not destined to return to Beaucaire to-night. The shortest follies are best, my dear Caderousse. You offered me hospitality, and I accept it, and have returned to sleep beneath your friendly roof.' Caderousse stammered out something, while he wiped away the sweat that started to his brow. La Carconte double-locked the door behind the jeweller.

"As the jeweller returned to the apartment, he cast around him a scrutinizing glance -- but there was nothing to excite suspicion, if it it did not exist, or to confirm it, if it were already awakened. Caderousse's hands still grasped the gold and bank-notes, and La Carconte called up her sweetest smiles while welcoming the reappearance of their guest. `Well, well,' said the jeweller, `you seem, my good friends, to have had some fears respecting the accuracy of your money, by counting it over so carefully directly I was gone.' -- `Oh, no,' answered Caderousse, `that was not my reason, I can assure you; but the circumstances by which we have become possessed of this wealth are so unexpected, as to make us scarcely credit our good fortune, and it is only by placing the actual proof of our our riches before our eyes that we can persuade ourselves that the whole affair is not a dream.' The jeweller smiled. -- `Have you any other guests in your house?' inquired he. -- `Nobody but ourselves,' replied Caderousse; `the fact is, we do not lodge travellers -- indeed, our tavern is so near the town, that nobody would think of stopping here. -- `Then I am afraid I shall very much inconvenience you.' -- `Inconvenience us? Not at all, my dear sir,' said La Carconte in her most gracious manner. `Not at all, I assure you.' -- `But where will you manage to stow me?' -- `In the chamber overhead.' -- `Surely that is where you yourselves yourselves sleep?' -- `Never mind that; we have a second bed in the adjoining room.' Caderousse stared at his wife with much astonishment.

"The jeweller, meanwhile, was humming a song as he stood warming his back at the fire La Carconte had kindled to dry the wet garments of her guest; and this done, she next occupied herself in arranging his supper, by spreading a napkin at the end of the table, and placing on it the slender remains of their dinner, to which she added three or four fresh-laid eggs. Caderousse had once more parted with his treasure -- the banknotes were replaced in the pocket-book, the gold put back into the bag, and the whole carefully carefully locked in the cupboard. He then began pacing the room with a pensive and gloomy air, glancing from time to time at the jeweller, who stood reeking with the steam from his wet clothes, and merely changing his place on the warm hearth, to enable the whole of his garments to be dried.

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 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.”