Below her she could dimly make out the gangster's farmhouse, the lake and the stretch of ground between them. She closed her throttle, pushing the stick forward as she did so, and at the same time applied right aileron and hard right rudder.

As the plane shot downward she neutralized the elevators. Then did likewise with her ailerons as the proper bank was reached. Left aileron and hard left rudder were next applied until the wings became laterally level. Having completed a beautiful half spiral, Dorothy landed the amphibian on the little lake.

Her next move was an unusual one, but on it depended the success or failure of her plan.

With the airplane headed toward the lake's low shore beyond which lay the farmhouse, she turned the switch which propelled the retractible landing gear downward and into the water. Then she opened the throttle for the last time.

There came a bump and a jar. The tail tilted to a dangerous angle as the plane's wheels struck the shallows. Would they mire in the soft ground at the lake's edge she wondered, and cause the big bus to nose over and crash? But no--the plane, after a sickening wrench, rolled free. It glided over the sandy bank and on to the grass.

Shutting off her engine, Dorothy permitted her amphibian steed to come to a stop at the porch steps, its ugly snout poked almost up to the open doorway of the house.

Dorothy had been too busy guiding her bus to pay any attention to the reception accorded her arrival. A shot or two had been fired from the porch and she had caught a glimpse of dark figures silhouetted against the open doorway.

But now, as the slowing wheels struck the steps, the porch was empty. The way was clear for Mike's release. Together they would find Bill and make a clean getaway in the amphibian. What did it matter if the gang made their escape? Her life and the lives of her two friends were all that counted now.

To speed the departing company she turned the Browning into action and sent half a belt of bullets whipping through the door. But Dorothy aimed high. She had no desire to play the part of executioner.

From her place in the cockpit she got a good view of the front room. Mike, the Scotland Yard detective, still sat bound to his chair, but the others were streaking for the back of the house. She could see them tugging at the doors, which for some reason, seemed to give them difficulty of exit. Huddled at the far end of the room, they clamored and struggled to get out of range.