"There are only two things you can do. The earth is round, and in a few years they'll pass this way again, and then you can tell them to stop. That's one thing you can do. The second is to despatch me on horseback to overtake and tell them to keep right on. They'll know what you mean, and they'll halt and wait until you come up." "That's the best plan," cried Jimmieboy, with a sigh of relief. "You hurry ahead and make them wait for me, and I'll come along as fast as I can." So the major mounted his horse and galloped away, leaving Jimmieboy alone in the road, trudging manfully ahead as fast as his small legs could carry him. [Illustration: THE PARALLELOPIPEDON AND THE MIRROR. PAGE 54.] CHAPTER IV. JIMMIEBOY MEETS THE ENEMY. As the noise made by the clattering hoofs of Major Blueface's horse grew fainter and fainter, and finally died away entirely in the distance, Jimmieboy was a little startled to hear something that sounded very like a hiss in the trees behind him. At first he thought it was the light breeze blowing through the branches, making the leaves rustle, but when it was repeated he stopped short in the road and glanced backward, grasping his sword as he did so. "Hello there!" he cried. "Who are you, and what do you want?" "Sh-sh-sh!" answered the mysterious something. "Don't talk so loud, general, the major may come back." "What if he does?" said Jimmieboy. "I rather think I wish he would. I don't know whether or not I'm big enough not to be afraid of you. Can't you come out of the bushes and let me see you?" "Not unless the major is out of sight," was the answer. "I can't stand the major; but you needn't be afraid of me. I wouldn't hurt you for all the world. I'm the enemy." "The what?" cried Jimmieboy, aghast. "I'm the enemy," replied the invisible object. "That's what I call myself when I'm with sensible people. Other people have a long name for me that I never could pronounce or spell. I'm the animal that got away." "Not the Parallelopipedon?" said Jimmieboy. "That's it! That's the name I can't pronounce," said the invisible animal. "I'm the Parallelandsoforth, and I've been trying to have an interview with you ever since I heard they'd made you general. The fact is, Jimmieboy, I am very anxious that you should succeed in capturing me, because I don't like it out here very much. The fences are the toughest eating I ever had, and I actually sprained my wisdom-tooth at breakfast this morning trying to bite a brown stone ball off the top of a gate post." "But if you feel that way," said Jimmieboy, somewhat surprised at this unusual occurrence, "why don't you surrender?" "Me?" cried the Parallelopipedon. "A Parallelandsoforth of my standing surrender right on the eve of a battle that means all the sweetmeats I can eat, and more too? I guess not."