"It's a legitimate case of a haunted house, then?" said Smith.

"Yes; we find them occasionally, these uninhabitable places, where there is something, something malignant and harmful to human life, but something that you cannot arrest, that you cannot hope to bring into court."

"Ah," replied Smith slowly; "I suppose you are right. There are historic instances, of course: Glamys Castle and Spedlins Tower in Scotland, Peel Castle, Isle of Man, with its Maudhe Dhug, the grey lady of Rainham Hall, the headless horses of Caistor, the Wesley ghost of Epworth Rectory and others. But I have never come in personal contact with such a case, and if I did I should feel very humiliated to have to confess that there was any agency which could produce a physical result—death,—but which was immune from physical retaliation."

Weymouth nodded his head again.

"I might feel a bit sour about it, too," he replied, "if it were not that I haven't much pride left in these days, considering the show of physical retaliation I have made against Dr. Fu-Manchu."

"A home-thrust, Weymouth!" snapped Nayland Smith, with one of those rare boyish laughs of his. "We're children to that Chinese doctor, Inspector, to that weird product of a weird people who are as old in evil as the Pyramids are old in mystery. But about The Gables?"

"Well, it's an uncanny place. You mentioned Glamys Castle a moment ago, and it's possible to understand an old stronghold like that being haunted, but The Gables was only built about 1870; it's quite a modern house. It was built for a wealthy Quaker family, and they occupied it, uninterruptedly and apparently without anything unusual occurring for over forty years. Then it was sold to a Mr. Maddison—and Mr. Maddison died there six months ago."

"Maddison?" said Smith sharply, staring across at Weymouth. "What was he? Where did he come from?"

"He was a retired tea-planter from Colombo," replied the Inspector.

"Colombo?"