All of which would indicate that she had made something of an impression on Harleston—who was neither by nature nor by experience impressible and, in the diplomatic game, had about as much sentiment as a granite crag. In fact, with Harleston every woman who appeared in the diplomatic game lay under instant and heavy suspicion.

Mrs. Clephane was the first exception.

X—Skirmishing

On the slender chance of finding Mrs. Clephane, Harleston made another tour of the rooms and corridor on the first floor.

It was without avail—save that he noticed Madeline Spencer and her escort were still at dinner. They did not see him—and he was very well content. Later he would want a word with them—particularly with her; and he preferred to meet her alone. She was a very beautiful woman, and very alluring, and the time was, and not so long ago, when he would have gone far out of his way to meet her; but another face—and business—occupied him at present. Moreover, the business had to do with Mrs. Spencer, and that shortly. Therefore he was content to be patient. Mrs. Clephane first.

So he went on to the private office and the manager.

“I’ve just taken another look over this floor,” he said; “Mrs. Clephane is not to be seen.”

“We paged her, also,” returned Banks; “and we’ve had every vacant room in the house examined without result. Here’s the diagram; let us go over it, perhaps we can get a lead from it. About half of the guests are personally known to the hotel; they are either permanent guests or have been coming here for a long time. However, pick out any that you suspect and we’ll try to find a way to get into their rooms. We are always at the service of the government, particularly the State Department.”

Harleston ran his eyes over the diagram, searching for Madeline Spencer. It was barely possible that she was registered under one of her own names. He found it at last—or thought he had: No. 717:—Madame Cuthbert and maid.

“What do you know of her?” he asked, indicating No. 717.