“But—well, let us speak quite frankly. Is no one else coming?” I inquired.

“Non, m’sieur. You will take me to Pisa at once, please,” she said impatiently.

So perforce I had to mount into the car, and when she had settled herself beside me, I drew off upon the dark and execrable road to the city she had indicated, in order to catch the Rome-Paris express.

Was it all a trap? I wondered. What had occurred? I dared not ask her anything, while she, on her part, preserved an absolute silence. Her only fear seemed lest she lost her train. That something had occurred was very evident, but of its nature I still remained in entire ignorance, even when, a short distance from the great echoing station, I dropped the chic little maid with whom I had for the past three weeks pretended to be so violently in love.

On getting down she told me to await her. She would be only a few minutes. This surprised me, as I thought she was leaving for Paris.

She hurried away, and as I watched her going down the road towards the station I saw the dark figure of a man emerge from the shadow and join her. For a moment he became silhouetted against the station lights, and I recognised that it was her mysterious friend.

Five minutes later she rejoined me. Then, on turning back, I was forced to remain at the level crossing until the Paris express, with its long wagon-lit, had roared past, and afterwards I put on a move, and we were soon back in Leghorn. She did not return to the hotel with me, but at her request I dropped her just before we entered the town.

Morning revealed the startling truth. Three women, occupying adjacent rooms, had lost the greater part of their valuable jewels which they had had sent from home on purpose to wear at the ball. The police were ferreting about the hotel, questioning everybody. There was commotion everywhere, and loud among those expressing amazement at the audaciousness of the thief were both Bindo and Her Highness, the latter declaring herself lucky that no attempt had been made to secure any of her own valuable jewels.

At noon I took her for a run on the car, in order to have an opportunity to chat. When we were alone on the road she said—

“You entertained a foolish but quite reasonable suspicion of Rosalie. She and Kampf, the man you saw her with, always work together. They indeed suggested this present little affair, for they knew that Italian women bring lots of jewellery here, in order to show it off. Besides, hotels are their speciality. So there seemed to Bindo no reason why we should not have a little of the best of it. The diamond necklace of the Signora Jacobi is well known to be one of the finest in all Italy; therefore, on several occasions, I lent her Rosalie for hair-dressing, and she, clever girl, very soon discovered where all the best of the stuff was kept. Bindo, in the meantime, was keeping his keen eye open in other quarters. Last night, when the Jewess went up to her room, she found her own maid had gone to bed very unwell, and the faithful Rosalie had, at my orders, taken her place. ‘How kind it was of the dear Princess!’ she said. When Rosalie left the room she carried with her the necklace, together with several other trifles which she had pretended to lock in the jewel-case. Ten minutes later Bindo also slipped into her hands all that he had obtained in a swift raid in two other rooms during the dance, and she left the hotel carrying away gems worth roughly, we believe, about sixteen thousand pounds sterling. Kampf was awaiting her in Pisa, and by this time is already well on his way to the frontier at Modane, with the precious packet in his pocket.”