I have not the faintest doubt," she went on, "that Miss Kane will identify the attic. Indeed I should be surprised beyond belief if she failed to."

She began to move towards the door, and consequently towards the girl; and for the first time the girl's eyes lit with expression. A spasm of alarm crossed her face. The police matron came forward a step, protectively. Mrs. Sharpe continued her unhurried progress and came to rest a yard or so from the girl, so that they were face to face. For a full five seconds there was silence while she examined the girl's face with interest.

"For two people who are on beating terms, we are distressingly ill acquainted," she said at last. "I hope to know you much better before this affair is finished, Miss Kane." She turned to Robert and bowed. "Goodbye, Mr. Blair. I hope you will continue to find us stimulating." And, ignoring the rest of the gathering, she walked out of the door that Hallam held open for her.

There was a distinct feeling of anti-climax now that she was no longer there, and Robert paid her the tribute of a reluctant admiration. It was no small achievement to steal the interest from an outraged heroine.

"You have no objections to letting Miss Kane see the relevant parts of the house, Miss Sharpe?" Grant asked.

"Of course not. But before we go further I should like to say what I was going to say before you brought Miss Kane in. I am glad that Miss Kane is present to hear it now. It is this. I have never to my knowledge seen this girl before. I did not give her a lift anywhere, on any occasion. She was not brought into this house either by me or by my mother, nor was she kept here. I should like that to be clearly understood."

"Very well, Miss Sharpe. It is understood that your attitude is a complete denial of the girl's story."

"A complete denial from beginning to end. And now, will you come and see the kitchen?"

3

Grant and the girl accompanied Robert and Marion Sharpe on the inspection of the house, while Hallam and the police matron waited in the drawing-room. As they reached the first-floor landing, after the girl had identified the kitchen, Robert said:

"Miss Kane said that the second flight of stairs was covered in 'something hard, but the same carpet continues up from the first flight."

"Only to the curve," Marion said. "The bit that 'shows. Round the corner it is drugget. A Victorian way of economising. Nowadays if you are poor you buy less expensive carpet and use it all the way up. But those were still the days when what the neighbours thought mattered. So the lush stuff went as far as eye could see and no further."

The girl had been right about the third flight, too. The treads of the short flight to the attic were bare.

The all-important attic was a low square little box of a room, with the ceiling slanting abruptly down on three sides in conformity with the slate roof outside. It was lit only by the round window looking out to the front.