The Mystery of the Blue Train

Katherine shook her head. "I don't think I saw any one at all," she said. "There was a youngish lad in a cap and overcoat who got at, but I don't think he was leaving the train, only walking up and down the plat^nn(?).

There was a fat Frenchman with a beard, in pyjamas and an overcoat, who ranted a cup of coffee. Otherwise, I think here were only the train attendants."

Poirot nodded his head several times. "It is like this, you see," he confided, "the Comte de la Roche has an alibi. An alibi, it is a very pestilential thing, and always open to the gravest suspicion. But here we are!"

They went straight up to Van Aldin's suite, where they found Knighton. Poirot introduced him to Katherine. After a few commonplaces had been exchanged, Knighton said, "I will tell Mr. Van Aldin that Miss Grey is here."

He went through a second door into an adjoining room. There was a low murmur of voices, and then Van Aldin came into the room and advanced towards Katherine with outstretched hand, giving her at the same time a shrewd and penetrating glance.

"I am pleased to meet you. Miss Grey," he said simply. "I have been wanting very badly to hear what you can tell me about Ruth."

The quiet simplicity of the millionaire's manner appealed to Katherine strongly. She felt herself in the presence of a very genuine grief, the more real for its absence of outward sign.

He drew forward a chair.

"Sit here, will you, and just tell me all about it."

Poirot and Knighton retired discreetly into the other room, and Katherine and Van Aldin were left alone together. She found no difficulty in her task. Quite simply and naturally she related her conversation with Ruth Kettering, word for word as nearly as she could. He listened in silence, leaning back in his chair, with one hand shading his eyes.

When she had finished he said quietly:

"Thank you, my dear."

They both sat silent for a minute or two.

Katherine felt that words of sympathy would be out of place. When the millionaire spoke, it was in a different tone:

"I am very grateful to you. Miss Grey. I think you did something to ease my poor Ruth's mind in the last hours of her life.

Now I want to ask you something. You know-M. Poirot will have told you-about the scoundrel that my poor girl had got herself mixed up with. He was the man of whom she spoke to you-the man she was going to meet. In your judgment do you think she might have changed her mind after her conversation with you? Do you think she meant to go back on her word?"

"I can't honestly tell you. She had certainly come to some decision, and seemed more cheerful in consequence of it."

"She gave you no idea where she intended to meet the skunk-whether in Paris or at Hyeres?"

Katherine shook her head.

"She said nothing as to that."

"Ah!" said Van Aldin thoughtfully, "and that is the important point. Well, time will show."

He got up and opened the door of the adjoining room. Poirot and Knighton came back.

Katherine declined the millionaire's invitation to lunch, and Knighton went down with her and saw her into the waiting car.

He returned to find Poirot and Van Aldin deep in conversation. "If we only knew," said the millionaire thoughtfully, "what decision Ruth came to. It might have been any of half a dozen. She might have meant to leave the train at Paris and cable to me. She may have meant to have gone on to the south of France and have an explanation with the Count there. We are in the dark-absolutely in the dark. But we have the maid's word for it that she was both startled and dismayed at the Count's appearance at the station in Paris. That was clearly not part of the preconceived plan-You agree with me, Knighton?" The secretary started. "I beg your pardon, Mr. Van Aldin. I was not listening."

"Day-dreaming, eh?" said Van Aldin.

"That's not like you. I believe that girl has bowled you over."

Knighton blushed.

"She is a remarkably nice girl," said Van Aldin thoughtfully, "very nice. Did you happen to notice her eyes?"

"Any man," said Knighton, "would be bound to notice her eyes."

Chapter 21. At the Tennis

Several days had elapsed. Katherine had been for a walk by herself one morning, and came back to find Lenox grinning at her expectantly.

"Your young man has been ringing you up, Katherine!"

"Who do you call my young man?"

"A new one-Rufus Van Aldin's secretary.

You seem to have made rather an impression there. You are becoming a serious breaker of hearts, Katherine. First Derek Kettering, and now this young Knighton. The funny thing is, that I remember him quite well. He was in Mother's War Hospital that she ran out here. I was only a kid of about eight at the time."

"Was he badly wounded?"

"Shot in the leg, if I remember rightly- rather a nasty business. I think the doctors messed it up a bit. They said he wouldn't Ump o1' anything, but when he left here he was still completely dot and go one."

Lady Tamplin came out and joined them.