“One for the Dutch patriots,” Stan said grimly.

As he roared over the rooftops, Stan leaned back and laughed. He would have to fly low because the high-level dual supercharger was not working. All he had done was adjust the regular carburization system. He had not taken chances on his work on the high-altitude machinery.

There were no Nazi planes in the air. There had been no alert. Stan was sure there would be no attack until he reached Rotterdam. Using the tactics of the Rhubarb Raiders he flew low over the tile roofs and the windmills.

In a surprisingly short time, the Mustang broke out over Rotterdam and Stan straightened his course. His compass was out, the gyro-horizon had been removed and both clocks were stopped. The radio had been stripped out of the ship along with every other instrument not absolutely necessary to test flight. Domber had only wanted to learn about the supercharger. His egotism in believing everyone else was dull-witted compared to himself had saved Stan.

Over the estuary of the Rhine River Stan met his first flak. A startled battery opened up as he flipped over so low down he could see the buttons on the artillery men’s uniforms. The firing was wild, but it roused gunners out on the Hook of Holland. There the Jerries did some closer shooting. But Stan was dusting the concrete emplacements and the gunners did not get their hearts into the job. Stan flipped up over blue water with a grin on his face.

Checking his gasoline supply, he judged he could get to the middle of the channel. He had no parachute and no life belt or Mae West suit to float him. The chill water of the channel would soon drag him down. He had to locate a patrol boat or a British ship of some other class. And he had to watch for Messerschmitts and Focke-Wulf fighters.

High above him he spotted three fighter craft. He saw them wheel and bank into the sun. They would be coming downstairs to have a look. Possibly they had been warned by radio to look for him. A minute later he spotted five more planes and these he was able to check. They were FW 190 fighters and they were coming up from the direction of Ostende on the Belgium coast. Then he saw two Me 109 Stingers slipping in from the other side. Stan kicked the Mustang wide open. No use trying to save gas by holding cruising speed. He had to get away from that coast.

The Mustang knifed ahead and Stan bent forward as the air-speed indicator rolled up to just under four hundred miles per hour. There was no more boost and he longed for the dual supercharger. The FW’s dropped in behind, unable to head him off, but the Me’s came on like falcons trapping a homing pigeon. Stan felt a good deal like a pigeon. He was unarmed and he was carrying a vital message that had to get through. He dived down close to the water and roared ahead.

One Me dived in on him and zoomed over him. Stan felt lead spattering all over his ship and saw cannon shells hit the sea close below his wings. The second Me came in and Stan slipped a bit, kicking the top of a wave with his port wing.

The Jerry was coming down at a terrific rate. He did not think any sane flier would be zooming along on the crests of the waves. When Stan dipped, the Jerry missed him and shot past. Stan pulled up sharply just as a great cloud of water and smoke lifted above the sea. The Jerry had hit nose-on. Stan saw the tail of his ship and one square-tipped wing rise above the green water, then slip from sight.