The young man was so engrossed with this letter that he paid no attention to the other occupants of the room. Thus he did not see Cap'n Cod and his niece enter the front door, nor notice that the former was greeted by two men who had been talking earnestly together and watching him with great interest. Nor did he see Sabella stoop to pat Bim, who had gone to meet her. He did not notice the entrance a moment later of a boy with a very puzzled expression of countenance and an open letter in his hand. Neither did he see that the boy was accompanied by the printer who had furnished his reward notices, and who now pointed in his direction, saying, "That's him there. That's Mr. Brickell."

At the same moment Sabella exclaimed, "Oh, Winn, here's Bim! Isn't he a dear dog?" Then she too caught sight of Billy Brackett, and pulling Cap'n Cod by the sleeve, whispered, "There he is, uncle. That is the gentleman you have come to thank for helping us so splendidly last evening."

While she was thus whispering into one ear, the night watchman of the wharf-boat, who stood on the other side of the old man, was saying, in a low tone, "Yes, sir. As I was just telling the Sheriff, that's the man as stole his skiff, for I saw him when he landed here in it."

Sheriff Riley, who had only reached Mandrake half an hour before, was staring at Winn, and saying to himself, "There's the young rascal now. I knew it wasn't that other fellow, though somehow his face is strangely familiar too."

There was a momentary hesitation on all sides. Then, as though moved by a single impulse, Winn started towards Billy Brackett to ask him if his name was Brickell, Cap'n Cod stepped up to express his heart-felt gratitude for what he had done the evening before, and Sheriff Riley moved towards Winn with the intention of arresting him. At this Bim, recognizing the Sheriff, stationed himself in front of his preoccupied master, erected the bristles on the back of his neck, and growled.

CHAPTER XXI.

EVERY ONE EXPLAINS.

At Bim's growl, Billy Brackett said "Be quiet, sir!" and looked up. He wondered somewhat at the number of persons advancing towards him, and was also surprised to note that, with one exception, they were all people whom he knew. He recognized Sabella and her uncle, the wharf-boat man, the printer, and even the Sheriff of Dubuque County. The only one of the group whom he had not seen before was the gentlemanly and thoroughly honest-looking young fellow upon whose shoulder the Sheriff had just laid his hand, saying,

"I want you, my boy."