Whatever happened, we must strain every nerve to reach Scotland in safety, and then to get married, in order that Harold might immediately surrender himself. At York, I noticed with a thrill of terror that a man in plain clothes, with the obtrusively unobtrusive air of a detective, looked carefully though casually into every carriage. I felt sure he was a spy, because of his marked outer jauntiness of demeanour, which hardly masked an underlying hang-dog expression of scrutiny. When he reached my place, he took a long, careless stare at me--a seemingly careless stare, which was yet brim-full of the keenest observation. Then he paced slowly along the line of carriages, with a glance at each, till he arrived just opposite the Maharajah's compartment. There he stared hard once more. The Maharajah descended; so did Harold and the Hindu attendant, who was dressed just like him. The man I took for a detective indulged in a frank, long gaze at the unconscious Indian prince, but cast only a hasty eye on the two apparent followers. That touch of revelation relieved my mind a little. I felt convinced the police were watching the Maharajah and myself, as suspicious persons connected with the case; but they had not yet guessed that Harold had disguised himself as one of the two invariable Rajput servants. [Illustration: "HE TOOK A LONG, CARELESS STARE AT ME."] We steamed on northward. At Newcastle, the same detective strolled, with his hands in his pockets, along the train once more, and puffed a cigar with the nonchalant air of a sporting gentleman. But I was certain now, from the studious unconcern he was anxious to exhibit, that he must be a spy upon us. He overdid his mood of careless observation. It was too obvious an assumption. Precisely the same thing happened again when we pulled up at Berwick. I knew now that we were watched. It would be impossible for us to get married at Edinburgh if we were thus closely pursued. There was but one chance open; we must leave the train abruptly at the first Scotch stopping station. The detective knew we were booked through for Edinburgh. So much I could tell, because I saw him make inquiries of the ticket examiner at York, and again at Berwick, and because the ticket-examiner thereupon entered a mental note of the fact as he punched my ticket each time: "Oh, Edinburgh, miss? All right"; and then stared at me suspiciously. I could tell he had heard of the Ashurst will case. He also lingered long about the Maharajah's compartment, and then went back to confer with the detective. Thus, putting two and two together, as a woman will, I came to the conclusion that the spy did not expect us to leave the train before we reached Edinburgh. That told in our favour. Most men trust much to just such vague expectations. They form a theory, and then neglect the adverse chances. You can only get the better of a skilled detective by taking him thus, psychologically and humanly.