“That’s Prince!” exclaimed Will, for in the moonlight he saw a white horse eating from the box. The “ghost” had arrived. Will resolved to make the attempt alone. He stepped softly from the tent, and made his way toward the horse. He had on a pair of tennis shoes that made his footsteps practically noiseless. Fortunately, Prince, should it prove to be that animal, stood sideways to the tent, his head away from it, so that he did not see Will. The boy tried to ascertain if there was a saddle on the horse, but there was the shadow of a tree across the middle of his back, and it was impossible to say for sure. Nearer and nearer stole Will. He thought he was going to have no trouble catching him, but when almost beside Prince, for Will was certain of the identity now, he stepped on a twig, that broke with a snap. With a snort Prince threw up his head and wheeled about. He saw Will, and leaped away. “Prince, old fellow! Prince! don’t you know me?” called the boy, and he gave a whistle that Prince always answered. The horse retreated. Will held out some sugar he had ready for such an emergency. “Prince! Prince!” he called. The horse stopped and stretched out his head, sniping. Prank and Allen came to the tent opening. “Keep back!” called Will, in even tones. “I think I have him. Prince! Come here!” The horse took a step forward. He sensed his master now. Will advanced, speaking gently, and a moment later Prince, with a joyful whinny, was nibbling at the sugar in the boy’s hand. Then Will slid the other along and caught the mane. The bridle was gone. “I have him!” cried Will. “Bring the rope, fellows.” Prince was not frightened now. He stood still. Will led him into the full moonlight. Then he exclaimed: “The saddle is gone!” CHAPTER XXV THE MISSING SADDLE “Have you caught Prince?” Grace called this to her brother from the tent where she and the other girls had been aroused by the commotion. “Yes, I have him. He knew me almost at once,” answered Will. “But the saddle is gone!” “And the papers?” Grace faltered. “Gone with it, I fancy. Too bad!” “Maybe he just brushed the saddle off,” suggested Allen, who, with Frank, had come out with a rope halter that had been provided in case the “ghost hunt” was a success. “We’ll look around. I’ll get a lantern.” But a hasty search in the darkness revealed nothing. There was no sign of a saddle. “We’ll have to wait until morning,” sighed Will, as he tied Prince to a tree. “Then we can see better, and look all around. Prince, old boy, you knew me; didn’t you?” The handsome animal whinnied, and rubbed his nose against Will’s arm. “And so you played the part of a ghost, you rascal! Scaring the girls——” “We’ll never admit that,” called Betty from the tent.