THE HARDY BOYS AT SCHOOL If the boys had any lingering hopes that their school chums would not hear of the manner in which they had been fooled, these hopes were quickly removed next morning. Scarcely had Frank and Joe ascended the concrete steps of Bayport High than Chet Morton, a stout chubby boy of about sixteen, one of their closest friends, a lad with a passion for practical jokes, came solemnly toward them with a green tobacco coupon in his hand. "Just the fellows I'm looking for," he chirped. "My great-grandmother just died in Abyssinia and I'm trying to raise the railway fare to go to the funeral. How about changing this hundred?" There was a roar of laughter from about a dozen boys who were standing about, for Chet had evidently acquainted them all with the affair of the previous day. How he had learned of it, Frank and Joe could not imagine. They grinned good-naturedly, although Joe blushed furiously. "What's the matter?" asked Chet innocently. "Can't you change it? You don't mean to tell me you can't change my hundred dollar bill? Please, kind young gentlemen, please change my hundred dollar bill, for if you don't I'm sure nobody else will and then I won't be able to go to my great-grandmother's funeral in Abyssinia." He wiped away an imaginary tear. "Sorry," said Frank gravely. "We're not in the money-changing business." "You mean you're not in it any more," pointed out Chet. "You were in the business yesterday, I know. What's the matter--retire on your profits?" "Yes, we quit." "I don't blame you." Suddenly Chet struck an attitude of exaggerated surprise. "Why, bless my soul, I do believe this bill is bad!" He peered at the flimsy tobacco coupon very closely, then whipped a small magnifying glass from his pocket and squinted through it. At last he raised his head, with a sigh. "Yes, sir, it's bad. It's counterfeit. One of the cleverest counterfeits I ever saw. If it hadn't been for the fact that there is no hundred dollar mark on it and if it hadn't been that there is a picture of the president of the El Ropo Tobacco Company instead of George Washington, I'd have been completely fooled. Isn't it lucky that you boys didn't change it for me? Isn't it lucky? Congratulations, young sirs. Congratulations!" He shook Frank and Joe warmly by the hand, in the meantime keeping a very solemn face, while the other lads surged about in a laughing group and joined in the "kidding." They jested unmercifully about the incident of the counterfeit five dollars, but the Hardy boys took it all in good part. The news had leaked out through Mr. Moss, who had told Jerry Gilroy, one of the Hardy boys' chums, about the affair just a short while after they had left the store the previous afternoon. Jerry had lost no time acquainting Chet and the others with the details.