"Yes, that's right," he heard H. M.'s voice. He glanced round to see the uncanny little eyes fixed on him. Dark in the mist of snow, with his unwieldy top-hat and moth-eaten fur collar, H. M. looked like a caricature of an old actor. "It was this time last night that the whole business started to happen. - What's this I hear about you and the girl?"

"I only met her this morning."

"Uh-huh. She looks like Marcia Tait. Is that the reason?"

'No. "

"Well, I got no objection. Only thing to make sure is that she's not a murderer, or," H. M. scratched his chin, "related to a murderer. Very uncomfortable in the first case, and a bit embarrassin' in the second. Can you look at it from that view-point? No, I don't suppose you can. You wouldn't be worth your salt if you could. Anyhow, you can set your mind at rest about one thing. She didn't come down here last night to interview La Tait. No, no, son. She was much too anxious to prove that Canifest's daughter didn't. She thinks Canifest's daughter did."

"Do you think so?"

"You've all got your mind set on a woman, haven't you?" inquired H. M. "That Mrs. Thompson didn't swear it was a woman. No, no. She wouldn't. Widen your horizon a bit. Imagine it wasn't. '.. Besides, there's another reason why it sticks in the old man's throat to believe this Louise Carewe came down and bashed Tait's head in. I'll pass over the girl's remarkable ingenuity at bein' able to fly over a hundred feet of snow. I'll only ask you, What took her so long to do it?"

"How do you mean?"

"She cane down here at half-past one. Accordin' to what Masters says, Tait wasn't killed until some time after three. 'She came down to argue and expostulate,' says you, 'and when that wouldn't work she acted. It took nearly two hours. I can't imagine anybody arguin' with Tait for two hours without being chucked out. But disregard that, and look at the big point. Tait was expecting a visitor — John Bohun. If you've got any doubts of that, root 'en out of your mind. She was expecting important news about Canifest. Well, can you picture Tait wantin' anybody there on the premises when her cher amant dropped in during the night, especially the daughter of the man she had on the string for proposed matrimony? She got rid of Willard fast enough, but we're supposed to imagine she allowed the Carewe girl to stop there for two hours when she expected Bohun any minute. And two hours can be an awful long time, son."

"But look here, sir! Are you coming back to Rainger's idea that Bohun night have come down here at some time during the night? Because we know John didn't get back here until three o'clock. "