He was not depressed—only a little thoughtful. His faith in his luck sustained him. He was, he realized, in the position of a man who has made a supreme drive from the tee, and finds his ball near the green but in a cuppy lie. He had gained much; it now remained for him to push his success to the happy conclusion. The driver of Luck must be replaced by the spoon—or, possibly, the niblick—of Ingenuity. To fail now, to allow this girl to pass out of his life merely because he did not know who she was or where she was, would stamp him a feeble adventurer. A fellow could not expect Luck to do everything for him. He must supplement its assistance with his own efforts.

What had he to go on? Well, nothing much, if it came to that, except the knowledge that she lived some two hours by train out of London, and that her journey started from Waterloo Station. What would Sherlock Holmes have done? Concentrated thought supplied no answer to the question; and it was at this point that the cheery optimism with which he had begun the day left George and gave place to a grey gloom. A dreadful phrase, haunting in its pathos, crept into his mind. "Ships that pass in the night!" It might easily turn out that way. Indeed, thinking over the affair in all its aspects as he dried himself after his tub, George could not see how it could possibly turn out any other way.

He dressed moodily, and left the room to go down to breakfast. Breakfast would at least alleviate this sinking feeling which was unmanning him. And he could think more briskly after a cup or two of coffee.

He opened the door. On a mat outside lay a letter.

The handwriting was feminine. It was also in pencil, and strange to him. He opened the envelope.

"Dear Mr. Bevan" (it began).

With a sudden leap of the heart he looked at the signature.

The letter was signed "The Girl in the Cab."

"DEAR MR. BEVAN,

"I hope you won't think me very rude, running off without waiting to say good-bye. I had to. I saw Percy driving up in a cab, and knew that he must have followed us. He did not see me, so I got away all right. I managed splendidly about the money, for I remembered that I was wearing a nice brooch, and stopped on the way to the station to pawn it.