"Where away?" demanded Frank.
"Dead ahead."
"It's the island, all right," exclaimed Frank. "I laid a straighter course for it than I thought."
In a little while the barren speck loomed up lore plainly. As they approached closer the boys eagerly scanned the shores for a sight of he mysterious man, or the wrecked motor boat. But they saw nothing, even through the powerful glasses they used.
"Now to tie up and go ashore," said Frank, after the circuit was completed. A little later the anchor splashed into the shallow waters of the inlet and the two brothers were rowing ashore.
"Look out for yourself, Mr. Mysterious Man!" exclaimed Andy, as he stepped out of the boat. "We're on your trail."
"Bur-r-r-r! It's as desolate as the place where Robinson Crusoe was stranded!" cried Frank, as he looked about.
Overhead gulls were wheeling and circling with noisy cries, but this was the only sign of life on Cliff Island.