PROLOGUE In the month of December 1918, and on the very day that a British Cavalry Division marched into Cologne, with flags flying and bands playing as the conquerors of a beaten nation, the manager of the Hotel Nationale in Berne received a letter. Its contents appeared to puzzle him somewhat, for having read it twice he rang the bell on his desk to summon his secretary. Almost immediately the door opened, and a young French girl came into the room. "Monsieur rang?" She stood in front of the manager's desk, awaiting instructions. "Have we ever had staying in the hotel a man called le Comte de Guy?" He leaned back in his chair and looked at her through his pince-nez. The secretary thought for a moment and then shook her head. "Not as far as I can remember," she said. "Do we know anything about him? Has he ever fed here, or taken a private room?" Again the secretary shook her head. "Not that I know of." The manager handed her the letter, and waited in silence until she had read it. "It seems on the face of it a peculiar request from an unknown man," he remarked as she laid it down. "A dinner of four covers; no expense to be spared. Wines specified and if not in hotel to be obtained. A private room at half-past seven sharp. Guests to ask for room X." The secretary nodded in agreement. "It can hardly be a hoax," she remarked after a short silence. "No." The manager tapped his teeth with his pen thoughtfully. "But if by any chance it was, it would prove an expensive one for us. I wish I could think who this Comte de Guy is." "He sounds like a Frenchman," she answered. Then after a pause: "I suppose you'll have to take it seriously?" "I must." He took off his pince-nez and laid them on the desk in front of him. "Would you send the maitre d'hotel to me at once." Whatever may have been the manager's misgivings, they were certainly not shared by the head waiter as he left the office after receiving his instructions. War and short rations had not been conducive to any particularly lucrative business in his sphere; and the whole sound of the proposed entertainment seemed to him to contain considerable promise. Moreover, he was a man who loved his work, and a free hand over preparing a dinner was a joy in itself. Undoubtedly he personally would meet the three guests and the mysterious Comte de Guy; he personally would see that they had nothing to complain of in the matter of the service at dinner.... And so at about twenty minutes past seven the maitre d'hotel was hovering round the hall-porter, the manager was hovering round the maitre d'hotel, and the secretary was hovering round both. At five-and-twenty minutes past the first guest arrived.... He was a peculiar-looking man, in a big fur coat, reminding one irresistibly of a cod-fish. "I wish to be taken to Room X." The French secretary stiffened involuntarily as the maitre d'hotel stepped obsequiously forward. Cosmopolitan as the hotel was, even now she could never hear German spoken without an inward shudder of disgust. "A Boche," she murmured in disgust to the manager as the first arrival disappeared through the swing doors at the end of the lounge. It is to be regretted that that worthy man was more occupied in shaking himself by the hand, at the proof that the letter was bona fide, than in any meditation on the guest's nationality. Almost immediately afterwards the second and third members of the party arrived. They did not come together, and what seemed peculiar to the manager was that they were evidently strangers to one another. The leading one-a tall gaunt man with a ragged beard and a pair of piercing eyes-asked in a nasal and by no means an inaudible tone for Room X. As he spoke a little fat man who was standing just behind him started perceptibly, and shot a bird-like glance at the speaker. Then in execrable French he too asked for Room X."