Well, he would find out from the Yard if there was anything new, and if not he would fortify himself with tea. He needed it. And the slow sipping of tea conduced to thought. Not the painful tabulations of Barker, that prince of superintendents, but the speculative revolving of things which he, Grant, found more productive. He numbered among his acquaintances a poet and essayist, who sipped tea in a steady monotonous rhythm, the while he brought to birth his masterpieces. His digestive system was in a shocking condition, but he had a very fine reputation among the more precious of the modern littérateurs.

But over the telephone Grant heard something which put all thoughts of tea out of his head. There was waiting for him a letter addressed in capitals. Grant knew very well what that meant. Scotland Yard has a wide experience of letters addressed in capitals. He smiled to himself as he hailed a taxi. If people only realized that writing in capitals didn't disguise a hand at all! But he sincerely hoped they never would.

Before he opened the letter that awaited him he dusted it with powder and found it covered with fingerprints. He slit the top delicately, holding the letter, which was fat and softish, in a pair of forceps, and drew out a wad of Bank of England five-pound notes and a half-sheet of notepaper. On the notepaper was printed: "To bury the man who was found in the queue."

There were five notes. Twenty-five pounds.

Grant sat down and stared. In all his time in the C.I.D. a more unexpected thing had not happened. Somewhere in London tonight was some one who cared sufficiently for the dead man to spend twenty-five pounds to keep him from a pauper's grave, but who would not claim him. Was this corroboration of his intimidation theory? Or was it conscience money? Had the murderer a superstitious desire to do the right thing by his victim's body? Grant thought not. The man who stuck another in the back didn't care a hoot what became of the body. The man had a pal man or woman in London tonight, a pal who cared to the tune of twenty-five pounds.

Grant called in Williams, and together they considered the plain, cheap, white envelope and the strong, plain capitals.

"Well," said Grant, "what do you know?"

"A man," said Williams. "Not well off. Not used to writing much. Clean. Smokes. Depressed."

"Excellent!" said Grant. "You're no good as a Watson, Williams. You get away with all the kudos."

Williams, who knew all about Watson — at the age of eleven he had spent hunted moments in a hayloft in Worcestershire trying to read The Speckled Band without being discovered by Authority, who had banned it smiled and said, "I expect you have got far more out of it, sir."

But Grant had not. "Except that he's a poor hand at the business. Fancy sending anything as easily traced as English five-pound notes!" He blew the light, soft powder over the half-sheet of notepaper, but found no fingerprints. He summoned a constable and sent the precious envelope and the bundle of notes to have all fingerprints photographed. The sheet of notepaper bearing the printed message he sent to the handwriting expert.

"Well, the banks are shut now, worse luck. Are you in a hurry to get back to the missus, Williams?"

No, Williams was in no hurry. His missus and the baby were in Southend with his mother-in-law for a week.

"In that case," Grant said, "we'll dine together and you can give me the benefit of your ideas on the subject of murders in queues."

Some years before, Grant had inherited a considerable legacy — a legacy sufficient to permit him to retire into idle nonentity if such had been his desire. But Grant loved his work even when he swore and called it a dog's life, and the legacy had been used only to smooth and embroider life until what would have been the bleak places were eliminated, and to make some bleak places in other lives less impossible. There was a little grocer's shop in a southern suburb, bright as a jewel with its motley goods, which owed its existence to the legacy and to Grant's chance meeting with a ticket-of-leave man on his first morning out. It was Grant who had been the means of "putting him away," and it was Grant who provided the means of his rehabilitation. It was owing entirely to the legacy, therefore, that Grant was an habitué of so exclusive an eating place as Laurent's, and — a much more astonishing and impressive fact — a pet of the head waiter's. Only five persons in Europe are pets of Laurent's head waiter, and Grant was thoroughly conscious of the honour, and thoroughly sensible of the reason.

Marcal met them halfway down the green-and-gold room, with his face screwed to an expression of the most excruciating sorrow. He was desolated, but there was not a table worthy of Monsieur left. There were no tables at all except that much-to-be condemned one in that corner. Monsieur had not let him know that he was to be expected. He was desolated, desolated simply.

Grant took the table without a murmur. He was hungry, and he did not care where he ate so that the food was good, and except for the fact that the table was directly outside the service door there was no fault to be found with it. A couple of green draught-screens camouflaged the door, and the door, being a swing one, kept the rattle of crockery to a faint castanet music that blossomed every now and then in a sudden fortissimo as the door swung wide and closed again. Over their dinner Grant decided that in the morning Williams should visit the banks in the area indicated by the letter's postmark, and with that as a basis, track down the history of the bank-notes. It shouldn't be difficult; banks were always accommodating. From that they turned to the discussion of the crime itself. It was Williams' opinion that it was a gang affair; that the dead man had fallen foul of his gang, had known his danger, had borrowed the gun from the only friendly member of the crowd, and had never had a chance to use it. The money that had arrived tonight had come from the secretly friendly one. It was a good enough theory, but it left out things.

"Why had he no identification marks on him, then?"

"Perhaps," said Williams with electrifying logic, "it's a gang habit. No identification if they're caught."

That was a possible theory, and Grant was silent for a little, thinking it over. It was with the entrée that he became conscious, with that sixth sense which four years on the western front and many more in the C.I.D. had developed to an abnormal acuteness, that he was being watched. Restraining the impulse to turn round — he was sitting with his back to the room, almost facing the service door — he glanced casually into the mirror. But no one seemed to be taking the slightest interest in him. Grant continued to eat, and in a moment or two tried again. The room had emptied considerably since their arrival, and it was easy to examine the various people in the vicinity. But the mirror showed only a collection of self-absorbed people, eating, drinking, and smoking. And still Grant had that sense of being subjected to a long scrutiny. It made his flesh creep, that steady, unseen examination. He lifted his eyes above Williams' head to the screen that hid the door. And there, in the chink between the screens, were the eyes that watched him. As if conscious of his discovery, the eyes wavered and disappeared, and Grant went serenely on with his meal. A too curious waiter, he thought. Probably knows who I am, and just wanted to gape at any one connected with a murder. Grant had suffered much from the gapers. But presently, looking up in the middle of a sentence, he found the eyes back at their examination of him. This was too much. He stared stolidly in return. But the owner of the eyes was evidently unaware that he was visible at all to Grant, and continued his watching uninterrupted. Now and then as a waiter came or went behind the screen the eyes disappeared, but always they returned to their furtive gazing. Grant was seized with a desire to see this man whose interest in himself was of so absorbing a character. He said to Williams, who was seated not more than a yard in front of the screen, "There is some one at the back of the screen behind you who is taking a most abnormal interest in us. When I click my fingers fling back your right and knock the screen sideways. Make it look as much like an accident as you can."