"There's Medbury," said Dave at length, inclining his head towards a cluster of electric lights below and somewhat beyond them. "That means one-third of our journey covered." "It's great what you and the Baby Racer can do, Dave," cried the admiring and enthusiastic country boy. "We're going to make it, aren't we?" "If the wind doesn't change and we meet with no mishaps," answered Dave. A stretch of steady sailing was an excuse for Hiram to share a brief lunch of ham sandwiches with Dave. The thoughtful Grimshaw had provided these at the last moment of the departure of the biplane. By the watch Mr. King had given him on the occasion of winning a race for the Aegis, Dave found that it was a little after two o'clock when the Racer passed a town named Creston. "It's only twenty miles farther, Hiram," announced the young aviator with satisfaction. "And plenty of juice in the tank left to go on," added Hiram. "This is a trip to talk about, eh, Dave?" Dave nodded and smiled. He suddenly gave renewed attention to wheel and levers. "Anything wrong?" inquired Hiram, noticing the movement. "The wind is shifting slightly," was the reply. Dave felt of the breeze cautiously after that, keeping his cheek well to windward. It required constant watchfulness and maneuvering for the next fifteen miles to keep the control permanent. Dave was glad when a dim glow of radiance told that they had nearly reached the end of their journey. Dave "ducked," as the phrase goes, as a swoop from a new quarter sent the machine banking. He managed the dilemma by circling. There was only five more miles to cover. Dave went up searching for a steadier air current, found it, maintained a steady flight for over a quarter of an hour, and slowed down slightly as they came directly over Kewaukee. "Going to land?" inquired Hiram, attentively attracted by all these skillful maneuvers. "Yes," replied Dave. "The question is, though, to find just the right place." Dave tried to figure out the contour of the landscape beneath them. He passed over high buildings, skirted what seemed like a factory district, and began to volplane. "Going to drop?" queried Hiram. "I think so," responded Dave. "According to those electric lights there is a park or some other large vacant space we can strike on this angle." "The mischief!" exclaimed Hiram abruptly as the Racer struck a lower air current a strong blast of wind made it shake and reel. Then there was a creak, a sway and a snap. "Something broke!" shouted Hiram in excitement. "Yes," answered Dave rapidly. "It's one of the right outermost struts between the supporting planes." "The one that snapped the other day," suggested Hiram. "Likely. Grimshaw fixed it with glue and bracing, and fitting iron rings about it. The vibration of the motor and the straining have pulled the nail heads through the holes in the rings." "Can you hold out?"