“Was a strict watch kept, sir?” asked Lieutenant Johnson, sharply.

“Yes, of course,” said Captain Horton. “I have been on deck with my night-glass ever since you started, and as soon as we heard your guns the men stood ready, lanyard in hand, to fire at any vessel that tried to pass.”

“Then they must have gone off through some side stream, and come out into the river lower down.”

Captain Horton stamped his foot with rage, but nothing could be done until morning; for if the steamer had set off at once, it might have been only to pass the prahus in the darkness of some creek.

Morning then was impatiently awaited, and at the first streak of daylight a couple of boats at once set off, to find a side branch of the river about a mile above the steamer, and that it came out in the main stream once more, half a mile lower down.

They rowed through it to find the current swift and deep, though the place resembled a narrow canal. It was a short cut off through a bend of the river, and at last, vexed and discomfited, the steamer went rapidly back, to learn that the prahus had passed the island at daybreak, and had fired a few defiant shots from their lelahs as they rapidly went by.

“Never mind, Tom Long,” said Bob, as the former shivered in his great-coat, for the early morning was damp and cold, “only take time, and we shall put salt on their tails yet.”

“No, sir,” said old Dick, shaking his head seriously, “it strikes me as you never won’t catch them as manages them two swift boats. They’re too clever for us, they are. But only think of two big bits of Her Majesty’s army and navy like us being set at nought by this here savage prince.”

“Wait a bit, Dick, and you’ll see,” said Bob. “It strikes me that I’m the man for settling Mr Rajah Gantang; and if it does come to me to do so, why let him look out.”

“Ay, ay, sir; and his men too. I owe ’em one for that boat affair. The cowards! when a fellow was asleep!”