“Then what do you think her game was? Do you imagine she was genuinely in love with him?”

“Well, sir, that’s impossible to say, isn’t it? But knowing what I do about the lady, I should say she’d got some deeper game on than that. Something that was going to turn out to her material welfare, as you put it, I wouldn’t mind betting.”

“Of course you’ve had her past history probed into?” Roger remarked, with careful indifference. “That’s where you Scotland Yard people can always score over the free-lance sleuth. Did anything interesting come to light? I gather she was a bit of a daisy.”

The inspector hesitated and filled in a pause by application to his glass. Clearly he was debating whether any harm could be done by divulging this official secret. In the end he decided to risk it.

“Well,” he said, wiping his moustache, “you’ll understand that this is strictly confidential, sir, but we have had a man on the job—or two or three men, for that matter, both in London and up in the north, where the lady originally came from; and a few very interesting facts they were able to bring to light, too. Nobody has the slightest idea down here, of course, but the woman who called herself Mrs. Vane—well, she was a bit of a daisy, as you say.”

Roger’s eyes gleamed. “What do you mean, Inspector? Called herself Mrs. Vane? Wasn’t she really?”

The inspector did not answer the question directly. He leaned back in his chair and puffed at his pipe for a moment or two, then began to speak in a meditative tone.

“There’s real bad blood in that family—proper criminal stock, you might call ’em. The great-grandfather was one of the smartest burglars we’ve ever had in this country; they knew all about him at headquarters, but they never caught him. He never was caught, in fact. A lot of his jobs were put down later on to Charlie Peace, but they weren’t, they were his all right; and he was lucky, while Peace wasn’t. His son was a cut above burglaring. The old man left him a lot of cash, and he set up a bucket-shop in Liverpool. But he did over-reach himself. He served one stretch of three years, and one of five.

“This chap had two daughters and one son. They were left in pretty poor circumstances, because before he died their father managed to get rid of all the money he’d been left and all he’d made for himself besides. He’d managed to get rid of one of his daughters, as well before this, however—Miss Cross’s mother, who married an army officer and passes out of the family history. The son was a bit of a bad egg, but he went over to America and operated there; he’s still alive, and as a matter of fact in prison at the moment. Confidence-man, his little game is.

“The other daughter, Mrs. Vane’s mother, we’ve got nothing particular against either. She married a tradesman in Liverpool in a fair way of business, but ran away with another man after she’d brought him into the bankruptcy court by her extravagance, leaving her child, then ten years old, behind her. Her husband removed to London, taking the child with him, and took a post with a firm of wholesale chemists. He died when Mrs. Vane was seventeen, leaving nothing but debts.