CHAPTER XIV AN ODD DISCOVERY “John!” begged Grant. “Tell us what’s the matter.” John, however, was in no condition to say anything. He shivered and shook, and kept glancing fearfully at the entrance to the cave as though he expected some great ogre or dragon to emerge any moment. “Watch that cave, Pop,” directed Grant. “Perhaps we’d better get out of here.” “Can’t you talk, John?” exclaimed Fred. “Tell us what the trouble is.” John gulped and swallowed hard a couple of times. He pointed towards the cave and his lips moved, but no sound that resembled a word came from his ashen-colored lips. “Come on, John,” coaxed Fred. “You’re all right. Tell us about it.” John made another great effort. “That man,” he managed to gasp. “‘Man’!” cried Grant. “What man?” “I saw a man,” said John a

