It was drizzling outside, and there was a fog. Not a "London particular", but quite thick enough to make it difficult to see where one was going. People and vehicles passed him, vague phantoms in the darkness. Occasionally the former collided with him. He began to wish he had not accepted his brother's invitation. The unexpected sight of the three masters had shaken his nerve. Till then only the romantic, adventurous side of the expedition had struck him. Now the risks began to loom larger in his mind. It was all very well, he felt, to think, as he had done, that he would be expelled if found out, but that all the same he would risk it. Detection then had seemed a remote contingency. With three masters in the offing it became at least a possibility. The melancholy case of Peter Brown seemed to him now to have a more personal significance for him. Wrapped in these reflections, he lost his way. He did not realise this for some time. It was borne in upon him when the road he was taking suddenly came to an abrupt end in a blank wall. Instead of being, as he had fancied, in the High Street, he must have branched off into some miserable blind alley. More than ever he wished he had not come. Eckleton was not a town that took up a great deal of room on the map of England, but it made up for small dimensions by the eccentricity with which it had been laid out. On a dark and foggy night, to one who knew little of its geography, it was a perfect maze. Fenn had wandered some way when the sound of someone whistling a popular music-hall song came to him through the gloom. He had never heard anything more agreeable. "I say," he shouted at a venture, "can you tell me the way to the High Street?" The whistler stopped in the middle of a bar, and presently Fenn saw a figure sidling towards him in what struck him as a particularly furtive manner. "Wot's thet, gav'nor?" "Can you tell me where the High Street is? I've lost my way." The vague figure came closer. "'Igh Street? Yus; yer go--" A hand shot out, Fenn felt a sharp wrench in the region of his waistcoat, and a moment later the stranger had vanished into the fog with the prefect's watch and chain. Fenn forgot his desire to return to the High Street. He forgot everything except that he wished to catch the fugitive, maltreat him, and retrieve his property. He tore in the direction whence came the patter of retreating foot-steps. There were moments when he thought he had him, when he could hear the sound of his breathing. But the fog was against him. Just as he was almost on his man's heels, the fugitive turned sharply into a street which was moderately well lighted. Fenn turned after him. He had just time to recognise the street as his goal, the High Street, when somebody, walking unexpectedly out of the corner house, stood directly in his path. Fenn could not stop himself. He charged the man squarely, clutched him to save himself, and they fell in a heap on the pavement. XVI