"Can't you do anything for us?" asked Tom eagerly, unwilling to give up all at once. "It may be the last chance the authorities will have to catch those rascals."

The sergeant looked up from his paper.

"See here, young fellow," he said in a belligerent tone, "are you setting to teach me my business?"

Tom hastily assured him that such was not the case.

"But it is urgent that if anything is to be done it should be done at once," pursued the boy. "Those fellows on that tug——"

"Now, stop right there," warned the officer of the law, who had such a high idea of his importance, "what is right to be done will be done. What ain't, won't. Anyhow," he demanded, turning suddenly on the two lads, "how do I know you're speaking the truth, eh?

"Come to think of it," he added, suddenly rising from his seat and coming out from behind the desk, "you two fellows remind me a good deal of the description of two runaway bank messengers we've been asked to look for. They were supposed to be making for Canada. Yes," he said sharply, "I guess you're the lads, all right; anyway, I'll lock you up till you can prove otherwise. Dan!" he raised his voice, "Mike, Pete!"

At the words, three men appeared from a rear room. Tom saw in a flash that if this arrest was submitted to, it might result in the rascals who had abducted him getting clear away. He determined, in a flash, not to allow this if he could help it. As the first of the men ran at him, he thrust out a foot, and the fellow came down with a crash. Before any of the rest could recover from their surprise, the lad was off like a dart.

Behind him came shouts, but Tom was fleet of foot, and dodged and turned, like a rabbit with a pack of dogs hot on its tracks.

Suddenly, as he turned a corner, a voice sounded right at his shoulder: "In here, quick!"