some distance, we
rounded another point projecting from the west, and found ourselves in a
still broader part. It was somewhat shallow, we judged by the numerous
little islands and banks which rose above its surface.

"Hark!" said Natty, suddenly; "don't you hear the roar of water?"

I listened, and felt convinced that some waterfall or rapid was near us.
I shouted to Stanley. We ceased paddling for an instant.

"It may be a cataract," he answered; "but I have hopes that it is simply
the sound of rapids. If so, we may pass through them."

"A dangerous experiment!" observed David.

"It depends upon their character," answered his brother, from the other
canoe.

"But, without a pilot, would it be possible?"

"We must land and survey them first," shouted Stanley, "We shall have no
difficulty in doing that; and if we cannot pass them, we must try and
drag the canoes over the land. That, at all events, can be done."

We found as we proceeded that the roar of waters increased; and there
could be no doubt, from the way the river ran, that a rapid was before
us. We went on till the water was already beginning to bubble and hiss.
The bank on our right afforded tolerably easy landing; so, running the
canoes to it, we secured them to some trees which grew close down to the
water. Stanley sprang out, and called to Timbo to accompany him.

"We shall be able to judge whether we can safely pass through them," he
said. "I will be back quickly. Yes, we will take our rifles; we may
find them necessary."

He said this as Senhor Silva handed them out of the canoe. They were
soon out of sight among the thick underwood which grew near the banks.
It is very different, I should say, from the underwood in England;
composed rather of huge leaves, reeds of enormous height, and other
plants of the Tropics. The opposite side was also covered with wood, so
that we were unable to ascertain whether the Pangwes were in the
neighbourhood or not. We were, however, so much concealed by the
foliage among which our canoes were moored, that an enemy might have
passed on the opposite bank without perceiving us. We waited anxiously
for the return of Stanley and Timbo. At length they appeared.

"We can do it," Stanley exclaimed. "The water is rapid but clear, and
we may easily steer our way clear of the huge boulders through which it
passes."

Once more we shoved off. Each man screwed up his nerves for the trial;
for no slight trial