“Peters,” he said presently, as his man came in to stir the fire, “I may be leaving Rome for a day or two. I may even go to-night. So just pack my small suit-case.”

“Yes, sir.”

“Stay,” he said, and going to a drawer in a small occasional table which was laden with English books and magazines he took out a serviceable-looking Browning pistol, adding: “Just put that in also.”

“Very well, sir.”

It did not surprise Peters, for his master often took the weapon with him on night journeys upon Continental railways. Indeed in Italy one acquires the habit of carrying a gun.

In the afternoon Hubert strolled, as usual, up the Pincio where he met and greeted many of the great ones in Roman Society, not because he cared for it, but because it was the correct thing to do so, and as diplomat he had to bow always to Society’s decree.

He afterwards paid a call upon the Princess Altieri at the great old Grazini Palace, that fine mediaeval palazzo, the chief façades of which, as those who know Rome are aware, are in the Piazza della Valle and the Via del Sudario, that palace designed by the immortal Raphael and erected by Lorenzetto.

Entering the great portals where stood the pompous concierge in cocked hat and bearing his silver-headed staff of office, he ascended the great stone staircase at the head of which a flunkey met him and conducted him to the huge gilded salon wherein the Princess Altieri, a diminutive old lady in black, was entertaining a crowd of chattering friends.

After he had bowed over the old lady’s hand he glanced around and recognised a number of familiar faces. His own Chief, besides the Russian and French Ambassadors were there, while there were a dozen or so marquises and Counts with their women-folk, a few foreign notables, and a sprinkling of the ornamental men from the Embassies.

Hubert found himself chatting with Count Niccoli, Colonial Secretary of State, when presently his Chief came up and whispered in his ear: “Waldron, can you be round at the Embassy in an hour? I want to tell you something.”