Dave, starting to follow their example, paused, uttered a great shout, and ran to the sheer edge of the cliff.

"Hello, there--what's doing, mate?" challenged Daley, in some wonder.

"See! see! see!" cried Dave, pointing down at the sea with shining eyes--"the Swallow!"

CHAPTER XX

ON BOARD THE "SWALLOW"

"Captain Broadbeam, come here, please."

"Why, lad, what's the matter?"

Bob Vilett had spoken in a way that might well have excited the surprise of the commander of the steamer.

For over ten minutes Bob had stood at the side, gazing through a spyglass landwards. Now of a sudden the glass dropped in his nerveless hand. Bob began to tremble, and he had called to the friendly captain like one in distress.

"Those natives up to some more high jinks?" said Broadbeam, coming up to Bob.