Here they were given a day ash.o.r.e and bought a number of things that they greatly needed as all their effects had gone down with the Sylph.

Continuing her journey, the c.u.mberland sailed south through and past the Tropic of Cancer, almost to the equator, without a sign of an enemy. It was in fact just a day's sail from the equator before the c.u.mberland sighted another ship.

Quickly the wireless was put to working and it was found that the approaching vessel was the small British cruiser Dwarf. The cruisers came to anchor a short distance apart and the commanders of the two ships exchanged visits.

Upon Captain Marcus' return aboard the c.u.mberland, both ships immediately got under way, the Dwarf taking the lead.

"Something up!" said Jack to Frank, as they stood leaning over the rail.

"You are right," replied Frank, "and I'll bet you a little red apple I can tell you what it is."

"You can?" exclaimed Jack in surprise. "Let's have it then."

"In my spare moments," explained Frank, "I have been making a study of the maps and charts. We are now almost in the Gulf of Guinea. A small but nevertheless very deep, river called the Cameroon, empties into the gulf. Do you follow me?"

"Yes, but I don't see what you are driving at."

"Well, the Cameroon region is a German possession. Its largest town, several miles up this navigable river, is Duala, strongly fortified. This, if I am not badly mistaken, is our objective point."

"Perhaps you are right," said Jack somewhat dubiously, "but won't the forts be too strong for the cruisers?"

"Not these, I am sure."

"Well," said Jack, "I hope we see some action soon, whether it is at Duala, as you call it, or some other place. This is growing monotonous."

Frank's prophecy proved correct. Even now the c.u.mberland and the Dwarf were well into the Gulf of Guinea and making all headway toward the mouth of the river Cameroon, which point the vessels reached early the following morning, intending to anchor in the mouth of the stream.

At the approach of the cruisers, however, a fort guarding the harbor broke into action.

A few well-directed shots from the big guns of the c.u.mberland, and the fort was silenced. Then, instead of coming to anchor, the cruisers steamed slowly up the river.

Rounding a bend in the stream, Duala could be seen in the distance; likewise the forts guarding the town, and a bombardment of the fortifications was at once begun.

The sh.o.r.e batteries promptly returned the fire, but it soon became apparent that the guns on the ships outranged them.

For several hours the bombardment continued, and then two merchant steamers were seen making their way from the shelter of the port directly toward the British ships.

"Wonder what's up now?" said Frank, who at that moment, having been relieved from duty, stood beside Jack at the rail.

"Don't know," was the latter's brief reply. Nor did anyone else, so those on board the cruisers watched the movements of the oncoming steamers with much curiosity.

When the approaching vessels were little more than a mile up the river they came to a stop. Small boats were lowered over the sides and put off hurriedly in the direction from which they had come. Shortly after, a blinding glare rose to the sky, there was the sound of two terrific reports, one immediately following the other, and the two steamers slowly settled into the water.

Captain Marcus, on the bridge of the c.u.mberland, cried out:

"They have blockaded the river!"

It was true. The ruse was plainly apparent now that it was too late to prevent it. The two sunken vessels made further progress up the river by the British ships impossible.

"Wonder what we shall do now?" asked Frank.

"Haven't any idea," said Jack briefly.

Night drew on and still the British guns continued to hurl their sh.e.l.ls upon the German town.

With the fall of darkness there came an answer to Frank's question.

Captain Marcus summoned Frank and Jack.

"The Germans have effectually blocked the river," he told them.

"Therefore we cannot capture the town that way. Because of your experience, I have called you two lads to undertake a most dangerous mission.

"You," pointing to Jack, "will lead 400 sailors around through the woods and attack the enemy from the flank. You, Mr.

Chadwick," turning to Frank, "I shall put in command of a fleet of four small boats, armed with rapid-firers, and it will be your duty to try and crawl up the river without attracting the attention of the forts. Attacking from two sides, simultaneously, we should take the town. In the meantime we shall continue to sh.e.l.l the town, stopping our bombardment at such a time as I believe you will be prepared for a sudden attack. Therefore, when you reach your positions, you will not attack until the bombardment ceases. That shall be your signal. Do I make myself clear?"

"Perfectly," both lads agreed.

"Good, then. Everything shall be in readiness for you in an hour."

The lads saluted and left the commander's cabin.

Two hours later found Jack, with 400 British sailors at his command, already disembarked from small boats and stealing into the woods. Frank, with his little fleet, was picking his way carefully up the river.

The lad easily found a channel between the two sunken merchantmen, and the little boats pushed on.

"Careful of mines!" had been Captain Marcus' parting injunction and the lad peered keenly ahead constantly.

He made out several small objects floating upon the water, and these were carefully avoided.

By dint of careful rowing the boats finally drew up safely, not more than a quarter of a mile from the German forts, where the little party awaited the signal agreed upon.

Jack, in the meantime, had led his men through the dense woods, and by making a wide detour, had penetrated almost to the rear of the enemy's fortress, which, he figured, would be the most likely to be improperly guarded.

Here he and his men lay down, awaiting the signal to attack. But still the British bombardment continued, and sh.e.l.ls rained upon the little African town.

Suddenly the sound of screeching sh.e.l.ls ceased. Jack sprang to his feet and listened intently for a moment. But the big guns on the warships were now silent. It was time to act.

"Attention!" called Jack, and his men stood ready about him.

Silently they crept forward to the very edge of the little town.

Here, moving figures in the glare of many fires gave evidence that the German troops and their native allies were on the alert.

But as Jack had surmised, they were not expecting an attack from this direction.

Approaching closer and closer, Jack finally gave the command:

"Fire!"

The crack of 400 rifles followed this command, and under the withering fire of the British, the Germans were mowed down on all sides.