‘Not that I know of—but we’ll ask Deveril.’

He rang the bell and put the question to the butler.

‘No, sir, no one came to see Sir Carmichael. And I didn’t notice anyone hanging about the house either. No more did the maids, because I’ve asked them.’

The butler waited a moment, then inquired: ‘Is that all, sir?’

‘Yes, Deveril, you can go.’

The butler withdrew, drawing back in the doorway to let a young woman pass.

Franklin Clarke rose as she came in.

‘This is Miss Grey, gentlemen. My brother’s secretary.’

My attention was caught at once by the girl’s extraordinary Scandinavian fairness. She had the almost colourless ash hair—light-grey eyes—and transparent glowing pallor that one finds amongst Norwegians and Swedes. She looked about twenty-seven and seemed to be as efficient as she was decorative.

‘Can I help you in any way?’ she asked as she sat down.

Clarke brought her a cup of coffee, but she refused any food.

‘Did you deal with Sir Carmichael’s correspondence?’ asked Crome.

‘Yes, all of it.’

‘I suppose he never received a letter or letters signed ABC?’

‘A B C?’ She shook her head. ‘No, I’m sure he didn’t.’

‘He didn’t mention having seen anyone hanging about during his evening walks lately?’

‘No. He never mentioned anything of the kind.’

‘And you yourself have noticed no strangers?’

‘Not exactly hanging about. Of course, there are a lot of people what you might call wandering about at this time of year. One often meets people strolling with an aimless look across the golf links or down the lanes to the sea. In the same way, practically everyone one sees this time of year is a stranger.’

Poirot nodded thoughtfully.

Inspector Crome asked to be taken over the ground of Sir Carmichael’s nightly walk. Franklin Clarke led the way through the french window, and Miss Grey accompanied us.

She and I were a little behind the others.

‘All this must have been a terrible shock to you all,’ I said.

‘It seems quite unbelievable. I had gone to bed last night when the police rang up. I heard voices downstairs and at last I came out and asked what was the matter. Deveril and Mr Clarke were just setting out with lanterns.’

‘What time did Sir Carmichael usually come back from his walk?’

‘About a quarter to ten. He used to let himself in by the side door and then sometimes he went straight to bed, sometimes to the gallery where his collections were. That is why, unless the police had rung up, he would probably not have been missed till they went to call him this morning.’

‘It must have been a terrible shock to his wife?’

‘Lady Clarke is kept under morphia a good deal. I think she is in too dazed a condition to appreciate what goes on round her.’

We had come out through a garden gate on to the golf links. Crossing a corner of them, we passed over a stile into a steep, winding lane.