It was chilly in the car, but Davis slept the sleep of the just, ignoring the roaring of the motors outside, which was only slightly muffled by the windows of the car. Gerrod had gone to sleep some time before, and one of the two engineers was similarly curled up on the floor of the roomy and comfortable car. Hours passed, while the big seaplane winged its way steadily through the night. It roared its way across the vast chasm of the dark ocean below, an incarnation of energy at which the placid stars looked down in mild surprise. The exhausts roared continuously, the stays hummed musically, and the great wings cut through the air with resistless force. Within the dark body of the plane three men slept peacefully, one sat up sleepily, listening to the motors, and prepared to wake into alertness at the slightest sign of irregularity in the action of any of them, and one man sat quietly at the controls, his eyes fixed on the instruments before him, lighted by tiny, hooded electric bulbs. Course, due east. Altitude, five thousand feet. Speed, one hundred and fifteen miles. Twice during the night Davis woke and made sure that all was well. In leaving the navigation of the machine to his assistant, he was not throwing the major part of the work on him. The work would come in the morning, when they found the yacht. If there were anything in the talk of a sea monster having seized the yacht, Davis would need to be fresh for the search and possible battle that would follow. He was taking the most sensible precaution possible. And, in any event, he had driven for the first four hours, during which the younger man had rested. The first gray light began to appear in the east. The pilot of the plane had not looked away from his instruments for an hour, and not until a faint light outside called his attention to the approach of dawn did he think to glance through the windows. A dimly white glow was showing as an irregular splotch toward the east. The pilot saw it and noticed something odd about its appearance, but did not stop to examine it closely. He called Davis, as he had been ordered to do. Davis sat up, rubbed his eyes, and was thoroughly awake. "All right?" he asked. The pilot nodded. "Sunrise," he said. "You said to call you." "Right you are." Davis stood up and stretched his muscles. "Here, Teddy, wake up." Gerrod stirred, and in a moment was awake. Davis deftly prepared coffee and sandwiches. "Rescuers like ourselves need to be fed," he observed with a smile. "I wonder what is actually the matter with that person Morrison?" "Millionaires are timid folk," Gerrod agreed. "I'll bet we've had a wild-goose chase." "Funny, though," said Davis ruminatively. "People don't usually send out wild wireless messages like that. They probably ran into a big bunch of seaweed." He bit into a sandwich. The two engineers, with complete democracy, were already eating. The man at the controls suddenly uttered an exclamation.