Rick took heart. He ran to the side and jumped feet first. Scotty came within a hair of landing on top of him. From overhead came cries of rage, then another bellow from Zircon. In the next instant the scientist plunged into the water with them.

"Swim for it," he commanded. He rose high out of the water and yelled, "Out with those lights!"

The automobile lights that had illumined the scene blinked out. The voice called back, "Hurry! The junk is putting about!"

Rick was swimming at his best speed, head down in a powerful crawl, but he took time to look back over his shoulder. The junk was turning! He knew with despair that it could run them down easily. The shore was a long distance away. "Spread out," he called. "Then they can't get all of us." He put his head down and cut through the water like a fish. If only there were time to undress! But he didn't dare pause even long enough to untie his shoes.

The swim was a nightmare. Every few moments the auto lights blinked briefly as their unknown friend gave them a course to steer by. Rick looked back once and the junk had straightened out and was gaining on them. He redoubled his efforts. Scotty was even with him, but Zircon was pulling ahead.

He heard voices close behind and cast a glance back. The junk with the purple sails was perilously close. He drew new strength from somewhere and forged ahead.

The swimmers had closed the distance rapidly. The next time the lights blinked Rick could make out two figures standing next to the car. He could hear the creaking of gear on the junk and the grunts of the polemen, and the sounds were close! He lifted his voice in a cry for help. "They're on top of us!"

The car lights blinked on, and held the junk in their glare. A gun fired once from the shore. Rick saw the orange spurt. Then he heard a cry from almost overhead and the junk veered sharply.

"Angle right," Scotty called, and Rick saw that they were almost at the tip of the pier. He put on a last spurt, caught a pile, and pulled himself up by its lashings. In a moment all three of them were running down the pier toward the waiting car.

The lights came on and a British voice called, "In the car. Hurry!"