"He's sick."

"Where?"

"In a house near by. He wants you to come and see him."

Rufus hesitated.

"What's the matter with him?" he asked.

"He caught a cold, and is threatened with a fever," said the boy, glibly. "If you want to see him, I'll lead you where he is."

"All right! Go ahead!" said Rufus, thoroughly deceived by the boy's plausible story.

"You'll promise not to set the copps on him, after you've got the box?"

said Humpy.

"Yes, I promise."

"Then follow me."

Rufus followed, congratulating himself that things were coming out satisfactorily. He had no hesitation in making the promise he did, for he felt sure that he would be sustained by his employer. At any rate, he determined that, having pledged his word to Martin, nothing should make him break it.

Humpy stumped along, followed by Rufus. They turned the corner again, and the boy guided him at once to the counterfeiter's den.

"He's in there," said Humpy, with a jerk of his forefinger. "Come along!"

He mounted the steps, and opened the door, which had been left unlocked.

"He's upstairs," said Humpy. "Come up."

Rufus, without suspicion, followed his humpbacked guide up the narrow staircase. They had scarcely reached the top, when Smith, coming out of a room on the floor below, locked the outer door, and put the key in his pocket. This Rufus did not see, or it would have aroused his suspicion.

The boy opened the door of a chamber at the head of the staircase. "Go in there," he said.

Rufus entered, and looked around him, but saw no one. He did not have to wait long. A step was heard at the door, and James Martin entered the room, apparently in perfect health.

"I'm glad to see you, Rufus," he said with a triumphant grin. "You've been such an undootiful son that I didn't much expect you'd come to see your sick father."

Rufus sprang to his feet in dismay. The whole plot flashed upon him at once, and he realized that he had walked into a trap with his eyes wide open.

CHAPTER XIX.

IN A TRAP.

Our hero's first impulse, on finding himself entrapped, was to escape.

He sprang towards the door, but Martin quickly grasped him by the arm, and forced him back.

"No you don't!" he said, with emphasis. "I want you to stay with me."

"Let me go!" exclaimed Rufus, struggling to escape.

"Sorry I couldn't oblige you," said Martin, with a grin. "Can't you stay with your sick father a few days?"

"You've played me a mean trick," said Rufus, indignantly.

"What was you walkin' through this street for?" asked Martin. "Wasn't it because you wanted to see me?"

"Yes," answered our hero.

"Well, you've got what you wanted," said Martin, smiling maliciously. "I know'd you'd never find me if I didn't send out for you. Was there anything partic'lar you wish to say to me?"

"Yes," said Rufus, bluntly. "I want you to give me back that tin box you stole from me the other day."

"What do I know about any tin box?" asked Martin, not knowing that it had been spoken of by Humpy in the street.

"You needn't deny it, Mr. Martin. The boy you sent after me told me you took it."

"He did, did he?" said Martin, seeing that he must try another tack.

"Well, s'posin' I did, what then?"

"The law may have something to say. You'll stand a chance of going to Sing Sing for a few years."

"You'd have to prove I took it," said Martin, uneasily. "I only told the boy to say so, so's to get you in here. I read about the robbery in the papers."

"I recognized you at the time, and am ready to swear to you," said Rufus, firmly.

This was rather imprudent, for it made Martin even more determined to prevent our hero's escape.

"If that's your game," he said, "I'll see you don't get a chance to swear to any lies."

"What do you mean to do with me?" demanded Rufus.

"I aint decided yet," said Martin. "Your health's so delicate that I don't think it'll agree with you to go out in the street."

"Are you going to confine me here?"

"Maybe," said his step-father. "I shan't charge you nothing for board.

Your cheerful company'll pay me for that."

"Mr. Martin," said Rufus, "I've got a proposition to make to you."

"Go ahead and make it then."

"You've got yourself into a sc.r.a.pe about that tin box."

"I thought you was the one that had got into a sc.r.a.pe," said Martin, jocularly.