"Hello! who's there?" shouted Slugger.
"Maybe it's your father and Professor Lemm come back," added Nappy.
The bully came to the door and threw it open. When he found himself confronted by the Rovers and a strange man, he fell back in consternation.
"You!" he gasped. "How—er—did you get here?"
"You let us alone!" cried Nappy, in alarm; and, leaping to his feet, he tried to hide the precious box behind him.
"So we've got you, have we?" exclaimed Jack. "Nappy, you hand over that box."
"I—I don't know what you mean," stammered the lad addressed.
"See here! you haven't any right to come in here in this fashion," blustered Slugger, recovering somewhat from his surprise.
"Haven't we though!" broke out Randy.
"We've caught you, and we intend to make you suffer for what you've done," said Andy.