The afternoon dragged its leaden course. Throughout the house there was an atmosphere of unrest. Among themselves the guests complained because no action had been taken to track down the despoiler of their cars. Walters had rendered the lives of the domestic staff intolerable by insisting upon search for the missing key being made in the most unlikely and inaccessible places, although in his own mind he was convinced that it had been stolen by the errant Japanese.

In the library sat the three Ministers, for the most part gazing either at one another or at nothing in particular. They were waiting for something to happen: none knew quite what.

Dinner passed, a dreary meal; the ladies withdrew to the drawing-room; but still the heavy atmosphere of foreboding remained. It was nearly half-past nine when Walters entered and murmured something in Sir Lyster's ear.

An eager light sprang into Mr. Llewellyn John's eyes as the First Lord rose, made his apologies, and left the room. It was only by the exercise of great self-control that the Prime Minister refrained from jumping up and bolting after him.

Two minutes later Walters again entered the dining-room, with a request that Mr. Llewellyn John and Lord Beamdale would join Sir Lyster in the library.

As Walters threw open the library-door, they found Malcolm Sage seated at the table, his fingers spread out before him, whilst Sir Lyster stood by the fireplace.

"Ask Miss Blair if she will come here to take down an important letter, Walters," said Sir Lyster.

"Well?" cried Mr. Llewellyn John, as soon as Walters had closed the door behind him. "Have you got it?"

"The document is now in a strong-room at the General Post Office," said Malcolm Sage without looking up. "I thought it would be safer there."

"Thank God!" cried Mr. Llewellyn John, collapsing into a chair.