Captain and Mrs. Arnold were delighted too, though the Captain kept a stern eye on the Mountain Folk, who were crowded together, trembling, watching the aeroplane.

“They look as if they expect it to jump on them, or bark at them or something,” grinned Jack.

“I think it would be a good thing if we took off at once,” said Ranni. “You never know when these people will find their senses and start making things unpleasant for us! They’ve only got to damage our plane and we are done for!”

“Here comes Pilescu with my plane!” cried Paul in delight, as the big blue and silver aeroplane circled overhead, making a tremendous noise. The mountains around threw the echoes back, and the aeroplane sounded like a rumbling thunderstorm! Round and round it circled, and the Mountain Folk gave groans of terror and threw themselves on their faces again.

The little prince’s plane made just as good a landing as the White Swallow. It let down its wheels and lightly touched the ground, running along smoothly over the enormous courtyard.

“Really, it is a perfect landing-ground!” said Captain Arnold, watching. “Smooth, big, and with plenty of wind!”

The blue and silver plane came to a stop. The door of the cockpit opened as the engines stopped. Pilescu looked out, his eyes hidden by sun-glasses. Ranni had not worn them, and the sight of Pilescu gave the Mountain Folk an even bigger fright!

Half of them rushed to the big stairway and disappeared down it, shouting. The other half, with the chief, knelt on the ground, the chief muttering something.

“He say, ‘Big chief want mercy!’” grinned Mafumu, who was now enjoying himself immensely.

“Well, if he thinks I’m going to throw him down the mountain-side or take him off in the planes, he’s mistaken,” said Captain Arnold. “I shan’t take any notice of him at all. Come along — we really ought to get off at once. It is a miraculous escape from great danger.”