"Well, if those fellows haven't got nerve!" "I should say so! Why it's a direct insult!" "We ought to challenge 'em to a sham battle. I know we could put it all over 'em at that game, if we can't at football; eh, fellows?" "Sure thing!" came in a chorus from a group of cadets who surrounded a rather fat, good-natured companion. The latter held an open letter in his hand, and had just finished reading it, the contents causing the various exclamations. "Say, Beeby," spoke Paul Drew, "are you sure it isn't a joke? Maybe they're just trying to have fun with us."