“What shall I do now?” said Jack, who was panting with his exertions.

“Let the winch go down on the deck, and haul the fish in hand over hand till you get him close in.”

Jack followed his instructions, and the captive, completely exhausted, now came in fast enough, proving to be far larger than any of those present had expected to see, but about a tenth of what Jack had imagined from the strength the creature had displayed. In fact there had been moments when the lad had again been calculating whether at one of the fiercest rushes he would not have to let go and so escape being dragged over the rail.

But now, half drowned by being drawn through the water, the fish came in slowly and quietly, the lad having all the hauling to himself, till, leaning over, the mate made a dart and a snatch with the great gaff-hook, the weight on Jack’s arms suddenly ceased, and, helped by the big dark sailor, Mr Bartlett hauled the prisoner quickly in over the rail, for it to lie beating the white boards with sounding slaps of its crescent-moon-shaped tail.

“Well done!” cried Sir John. “What brilliant colours!”

“Hah! yes,” cried the doctor. “This is something like fishing. What is it, captain?”

“Oh, one of the great mackerel tribe fellows they have in the Mediterranean. It isn’t a bonito, for it’s too big, but just as bright in its colours. Can’t be a small tunny come down through the Canal, can it?”

“I’m puzzled,” said the mate, bending over the beautiful prize. “It may be; but whatever it is, Mr Meadows here has had a fine stroke of luck, and we shall have fish for dinner.”

Jack flushed with the excitement of the capture, and stood looking on at the beauty of the creature’s colours in the bright sunshine, while the mate placed the end of the gaff-pole between its jaws before attempting to extract the great triple hook which hung by a swivel beneath the silvered shining bait.

“I should say it is one of the bonitos,” said the doctor thoughtfully. “It has that slimness just before the tail fin spreads out, and there are plenty of flying fish here, of course.”