And suddenly she became aware that there was sunlight about them no longer. All was a dun and chilly white. Paul, trying to get above the other, and the other trying to prevent him, had both run up together into a cloud. Once before the Welsh girl had had this experience. On a rocky mountain-path up Cader Idris she had walked into a thick mist that wrapped her from seeing anything in front of her, even though she could hear the voices of tourists just a little ahead.

And now here they saw nothing, but they could hear.

Even through the noise of their propeller Gwenna's ears caught a smaller noise. It seemed to come from just below.

She had got the muzzle of the carbine through the hole at her feet. Desperately, blindly she fumbled at what she thought must be the trigger. Behind her goggles, she shut her eyes tightly. The thing went off before she knew how it had done so.

Then, nothing....

Then the propeller had stopped again. She felt her shoulder touched from behind. Paul's voice called, "Got him, Ryan?"

"I—I don't know," she gasped, turning. "I—Paul! It's me!"

It was a wonder that the biplane did not completely overturn.

Paul Dampier had wrenched himself forward out of the straps and had taken one hand from the wheel. His other clutched Gwenna's shoulder, and the clutch dragged away the muffler at her white throat and her goggles slipped aside. Aghast he glared at her. The Little Thing herself? Here?

"Good—— here, keep still. Great——! For Heaven's sake, don't move. I'll run for it. He can't catch me. I was trying to catch him. He can't touch us—— We'll race—hold tight, Gwen—ready." He opened the throttle again; while Gwenna, white-faced, took in the tornado of wind with parted lips and turned sideways to stare with wide-open eyes.