"I still do not see," she said, "in what way I am concerned in this."

"It was your fellow-passenger, Countess, not yourself, concerning whom we were curious. We hoped that you might be able to give us some information. We understood that he joined the train hurriedly. If you like I will read you a description of Douglas Guest."

Emily de Reuss looked him in the face and shrugged her shoulders.

"My good man," she said, "it is not necessary. I am not in the least interested in the young man, and when I tell you that I went to the trouble and expense of engaging a compartment you will perhaps understand that I should not for a moment have tolerated any intrusion on the part of a stranger. The gentleman who accompanied me to London was one of the house party at Maddenham Priory, and an old friend."

The officer closed his notebook with a little sigh and bowed.

"It only remains for me," he said, "to express to your ladyship my regrets at having troubled you in the matter. Personally, your statement confirms my own view of the case. The young lady is excitable, and has been deceived."

Emily de Reuss inclined her head, and touched the knob of an electric bell. At the door the officer turned back.

"It would perhaps be as well," he said, "if you would favour us with the name of the gentleman who was your companion."

She hesitated.

"I think it quite unnecessary," she answered. "I have certain reasons, not perhaps very serious ones, but still worth consideration, for not publishing it abroad who my companion was. It must be sufficient for you that he was one of my fellow-guests at Maddenham Priory, and a friend for whom I can vouch."