"I'll never go into that express office again while I live," said Julian, earnestly. "I have had my luck once, and I don't believe it will come again."

When Julian went out into the office he saw Casper there, and he was as white as a sheet. Julian could not resist the temptation to pat an imaginary box under his arm and wink at Casper.

"What do you mean by that pantomime?" said he.

"It means that you can't get the start of two fellows who have their eyes open," said Julian. "I've got the box."

"You have?" gasped Casper. "You've been into my room when I was not there? I'll have the police after you before I am five minutes older!"

Casper jumped to his feet and began to look around for his hat.

CHAPTER V.

CASPER THINKS OF SOMETHING.

Julian stood with his hands in his pockets looking at Casper, and something that was very like a smile came into his face.

"I know what you went in there with Mr. Wiggins for," said Casper; and having found his cap by that time, he jammed it spitefully on his head, "and I just waited until you came out so that I could ask you. I don't need to ask you. I tell you once for all——"