But about business? Lamont had evidently felt his comparative poverty very keenly, and had resented his friend's lack of sympathy. Was his "fed up" a euphemism for a smouldering resentment that had blazed into hatred? But — after having had two hundred and twenty-three pounds — no, of course, he didn't know about that until afterwards. That might have been true, that tale of the packet, and he had taken it for granted that it contained the expected watch. After all, one does not expect to be handed two hundred and twenty-three pounds by a departing friend whose whole fortune it is. That was possible to the point of probability. He had said goodbye, and afterwards — but what did he argue about? If he had come back to stab Sorrell, he would not have called attention to himself. And what had Sorrell intended to do? If Lamont's story were true, then the only explanation of Sorrell's conduct was intended suicide. The more Grant thought, the more certain he became that only light on Sorrell's history would elucidate the problem and prove Lamont's guilt or — incredible! — innocence. His first business when he was back in town would be to do what he had neglected in his hurry to get Lamont — find Sorrell's luggage and go through it. And if that yielded nothing, he would see Mrs. Everett again. He would like to meet Mrs. Everett once more!

He took a last look at the calmly sleeping Lamont, and said a last word to the stolidly wakeful constable, and composed himself to sleep, worried, but filled with resolution. This business was not going to be left where it was.

After a hot bath, during which he had twiddled his toes in the wavering steam and tried to mesmerize himself into that habitually comfortable frame of mind of a detective officer who has got his man, Grant repaired to the Yard and went to interview his chief. When he came into the great man's presence Barker was complimentary.

"Congratulations, Grant!" he said. "That was very smart work altogether." And he asked for details of the capture which Grant had not, of course, included in his official report, and Grant provided him with a vivid sketch of the three days at Carninnish. The superintendent was highly amused.

"Well done!" he said. "Rather you than me. Careering across bogs was never a sport of mine. It seems you were the right man in the right place this time, Grant."

"Yes," said Grant unenthusiastically.

"You don't let your emotions run away with you, do you?" said Barker, grinning at his unsmiling face.

"Well, it's been luck, mostly, and I made one bad break."

"What was that?"

"I found out that Sorrell had really intended to go to America — at least, that he had booked a berth — and I forgot that his belongings would be lying at a terminus waiting to be examined."

"That doesn't sound a very vital mistake to me. You knew who the man was and who his friends were. What more could you find out that would help you to Lamont?"

"Nothing about Lamont. It was because I was so hard on Lamont's trail that I forgot about the luggage. But I want to know more about Sorrell. To tell you the truth," he added in a sudden burst, "I'm not very happy about this case."

Barker's jaw dropped just a little. "What's wrong?" he said. "It's the clearest case the Yard has had for some time."

"Yes; on the surface. But, if you dig a bit, there seems to be more than meets the eye."

"What do you mean? That there was more than one in it?"

"No; I mean that there's just the barest possibility that we've got the wrong one."

For a little there was silence. "Grant," said Barker at last, "I never knew you to lose your nerve before. You need a holiday. I don't think scooting across moors can be good for you. Perhaps the jogging movement is addling to the brain. You certainly have lost your critical faculty."

Grant could find nothing to say except "Well, here's the statement he gave us last night," and he handed it over. While Barker was reading it, he crossed to the window, gazed at the patch of green and the river in the sun, and wondered if he were making a complete fool of himself to be worrying when he had a good case. Well, fool or no fool, he would go along to Waterloo as soon as his chief had finished with him, and see what he could pick up there.

When Barker dropped the statement with a little flop on to the table, Grant turned eagerly to see what effect it had had on him. "Well," said that worthy, "it leaves me with a strong desire to meet Mr. Lamont."

"Why?" asked Grant.

"Because I'd like to see in person the man who tried sob-stuff on Inspector Grant and got away with it. The unimpressionable Grant!"

"That's how it strikes you, is it?" Grant said gloomily. "You don't believe a word of it?"

"Not a word," said Barker cheerfully. "It's about the thinnest story I've known put up for some time. But then I should think the man was hard put to it to find any way out of the evidence at all. He did his damnedest — I will say that for him."

"Well, look at it from the other way, and can you think of a reasonable explanation for Lamont's killing Sorrell?"

"Tut, tut, Grant, you've been at the Yard for I don't know how many years, and you're looking at this late stage for reason-able murders. You need a holiday, man. Lamont probably killed Sorrell because the way he ate had got on his nerves. Besides, it isn't any of our business to fit psychology to people or to provide motives or anything of that sort. So don't worry your head. Fit them with good watertight evidence and provide them with a cell, and that's all we have to bother about."

There was a short silence, and Grant gathered up his papers preparatory to taking his leave and getting along to Waterloo.

"Look here," said Barker out of the silence, "all joshing apart — do you believe the man didn't do it?"

"I don't see how he could not have," Grant said. "There's the evidence. I can't say why I'm uneasy about the thing, but that doesn't alter the fact that I am."

"Is this an example of the famous flair?" said Barker, with a return to his former manner.

But Grant would not be other than serious this morning. "No; I think it's just that I have seen Lamont and talked to him when he was telling his story, and you haven't."

"That's what I said to begin with," Barker reminded him. "Lamont has tried a sob-story on you and put it over…Put it out of your head, Grant, until you get even a tittle of evidence to substantiate it. Flair is all very well, and I don't deny that you have been uncanny once or twice, but it has always been more or less in accordance with the evidence before, and in this case it most emphatically isn't."

"That's the very thing that makes me worry most. Why should I not be pleased with the case as it stands? What is it that makes me not pleased? There is something, but I'm blowed if I can see what it is. I keep feeling that something is wrong somewhere. I want something that will either tighten up the evidence against Lamont or loosen it."

"Well, well," said Barker good-humouredly, "go ahead. You've done so well so far that you can afford to play your-self for a few days more. The evidence is good enough for the police court — or any other kind of court, for that of it."

So Grant betook himself through the sunny, busy morning to Waterloo, trailing a little cloud of discontent behind him as he went. As he stepped from the warm pavement into the cool vault of the best but saddest of all London stations — the very name of it reeks of endings and partings — gloom sat on his face like a portent. Having obtained the necessary authority to open any luggage that Sorrell might have left, he re-paired to the left-luggage room, where a highly interested official said, "Yes, sir, I know them. Left about a fortnight ago, they were," and led him to the luggage in question. It consisted of two well-worn trunks, and it occurred to Grant that neither was labelled with the Rotterdam-Manhattan company's labels as they should have been if Sorrell had intended going aboard at Southampton. Nor were they addressed at all. On ordinary labels on each was written in Sorrell's writing, "A. Sorrell," but nothing else. With his own keys and a slight quickening of heart he opened them. Below the top garment in the first were Sorrell's passport and tickets for the voyage. Why had he left them there? Why not have taken them with him in a pocketbook? But along-side them were the labels supplied by the company for the labelling of passengers' luggage. Perhaps for some reason Sorrell had meant to open the trunk again before going down on the boat-train, and had postponed labelling it till then. And had left his tickets and passport there as being safer than a pocketbook in a queue.