"Yes, you can certainly come in on that," said Slingsby. He reflected for a moment before he added: "I have no power, of course. But I have some friends. I think you may reasonably reckon that you won't be molested."

I saw Peiffer's eyes glitter behind his glasses.

"But there's a condition," Slingsby continued sharply. "You must not leave Gibraltar without coming personally to me and giving me twenty-four hours' notice."

Peiffer was all smiles and agreement.

"But of course. We shall have matters to talk over--terms to arrange. I must see you."

"Exactly. Cross by the nine-fifty steamer tomorrow morning. Is that understood?"

"Yes, sir." And suddenly Peiffer stood up and actually saluted, as though he had now taken service under Slingsby's command.

The unexpected movement almost made me vomit. Slingsby himself moved quickly away, and his face lost for a second the mask of impassivity. He stood at the window and looked across the water to the city of Gibraltar.

Slingsby had been wounded in the early days of the war, and ever since he had been greatly troubled because he was not still in the trenches in Flanders. The casualty lists filled him with shame and discontent. So many of his friends, the men who had trained and marched with him, were laying down their gallant lives. He should have been with them. But during the last few days a new knowledge and inspiration had come to him. Gibraltar! A tedious, little, unlovely town of yellow houses and coal sheds, with an undesirable climate. Yes. But above it was the rock, the heart of a thousand memories and traditions which made it beautiful. He looked at it now with its steep wooded slopes, scarred by roads and catchments and the emplacements of guns. How much of England was recorded there! To how many British sailing on great ships from far dominions this huge buttress towering to its needle-ridge was the first outpost of the homeland! And for the moment he seemed to be its particular guardian, the ear which must listen night and day lest harm come to it. Harm the Rock, and all the Empire, built with such proud and arduous labour, would stagger under the blow, from St. Kilda to distant Lyttelton. He looked across the water and imagined Gibraltar as it looked at night, its houselights twinkling like a crowded zone of stars, and its great search-beams turning the ships in the harbour and the stone of the moles into gleaming silver, and travelling far over the dark waters. No harm must come to Gibraltar. His honour was all bound up in that. This was his service, and as he thought upon it he was filled with a cold fury against the traitor who thought it so easy to make him fail. But every hint of his anger had passed from his face as he turned back into the room.

"If you bring me good information, why, we can do business," he said; and Peiffer went away.