car turned and sped back the way it had come.

For a moment he thought he was alone, and looked around. Far away
in the distance he saw the grey bulk of Princetown Gaol. It was
an accident that he should see it, but it so happened that a ray
of the sun fell athwart it and threw it into relief.

He was alone on the moors! Where could he go?

He turned at the sound of a voice.

He was standing on the slope of a small tor. At the foot there
was a smooth stretch of green sward. It was on this stretch that
the people of Dartmoor held their pony races in the summer months.
There was no sign of horses; but only a great bat-like machine
with out-stretched pinions of taut white canvas, and by that
machine a man clad from head to foot in brown overalls.

John stumbled down the slope. As he neared the machine he stopped
and gasped.

"Kara," he said, and the brown man smiled.

"But, I do not understand. What are you going to do!" asked
Lexman, when he had recovered from his surprise.

"I am going to take you to a place of safety," said the other.

"I have no reason to be grateful to you, as yet, Kara," breathed
Lexman. "A word from you could have saved me."