To the extreme discomfort of Lomas he filled the time which their car took in reaching London with a lecture on the case. He found that three explanations were possible. The stone might have been stolen by some one who believed in its magical power, or by some one who coveted it for a collection, or by some one who meant to sell it to a collector.

“Why stop?” Lomas yawned. “It might have been snapped up by a kleptomaniac or an ostrich or a lunatic. Or perhaps some chap wanted to crack a nut. Or a winkle. Does one crack winkles?”

Reggie went on seriously. He thought it unlikely that the thing was stolen as a charm.

“Oh, don’t lose heart,” said Lomas. “Why not put it down to a brave from Borneo? The original owner comes over in his war paint to claim his long lost magic stone. Malay runs amuck in Museum. That would go well in the papers. Very plausible too. Compare the mysterious Indians who are always hunting down their temple jewels in novels.”

“Lomas, you have a futile mind. Of course some fellow might want it for an amulet. It’s not only savages who believe in charms. How many men carried a mascot through the war? But your epileptic friend with the New York address don’t suggest this simple faith. I suspect a collector.”

“Well, I’ll believe anything of collectors,” Lomas admitted. “They collect heads in Borneo, don’t they? I know a fellow who collects shoes. Scalps or stamps or press-cuttings, it’s all very sad.”

“I want you to cable to New York and verify this epilept. Which I do not think. I’m going to look about for him here.”

“My dear Fortune!” Lomas sat up and put up an eyeglass to examine him. “Are you well? This is zeal. But what exactly are you looking for?”

“That’s what I want to find out,” said Reggie, and having left Lomas at Scotland Yard made a round of calls.

It is believed that there is no class or trade, from bargees to bishops, in which Reggie Fortune has not friends. The first he sought was a dealer in exotic curiosities. From him, not without diplomatic suppression of the truth, Mr. Fortune made sure that magic stones from Borneo were nothing accounted of in the trade, seldom seen and never sought. It was obvious that the subject did not interest his dealer, who could not tell where Mr. Fortune would find such a thing. Old Demetrius Jacob was as likely a man as any.