He turned and faced me, wild-eyed and excited. His lips were white, and his fingers locked and unlocked themselves in uncontrollable nervous restlessness.

"What's the danger?" I asked, with studied deliberation.

"I don't know. How should I? But it's there; will you go?"

"I don't mind trying," I answered, taking out my watch.

"You must go now!"

It was a quarter to one, and I told him so. Nobody can be less sensitive than I to the charge of eccentricity, but I refuse to disturb a Cabinet Minister's household at one in the morning to proclaim that an overstrung nervous visionary has a premonition that peril of a vague undefined order is menacing the daughter of the house.

"We must wait till Christian hours," I insisted.

"Ah, you don't believe it; no one does!"

At eleven o'clock next morning—as soon, in fact, as I had drunk my coffee and was comfortably shaved and dressed—I drove round to Cadogan Square in search of Sylvia. I had no very clear idea what warning I was to give her when we met; indeed I felt wholly ridiculous and slightly resentful. However, my word had gone forth, and I was indisposed to upset the Seraph by breaking it. I left him in the library, silent and pale, writing hard and accumulating an industrious pile of manuscript against my return. By morning light no trace remained of his overnight excitement.

To my secret relief Sylvia was not in when I arrived. The man believed she was shopping and would be out to luncheon, but if I called again about three I should probably find her at home. It hardly seemed worth my while to return to Adelphi Terrace, so I ordered some cigars, took a turn in the Park, lunched at the Club, and talked mild scandal with Paddy Culling. At three I presented myself once more in Cadogan Square.