for some time to come," said Guy; "that is one
consolation. I wish I could feel as certain of light. We have two lamps,
and to supply these two big flasks of palm oil, not nearly enough,
however, to last us on a long journey. When that is gone, I don't know
what we shall do."

"When we stop for rest we shall have to do without light," suggested
Melton. "If we find any places to stop," he added.

"It's beastly chilly in here," observed Sir Arthur, with a shiver. "Two
days in a hole like this will give us all rheumatism."

"Ah," said Melton, "but I have provided for that. See, here are the
trappings from the camels which I brought in while waiting for you." And
he held up one by one half a dozen richly embroidered rugs and skins,
which had belonged to the leaders of the Abyssinians.

This pleasing discovery put them all in better spirits, and it was
presently supplemented by another, which went far to remove the most
formidable obstacle to their journey, for while the canoes were being
examined Guy found in a far corner of the cavern a great pile of
torches, made from some highly resinous wood. These had evidently
belonged to the natives who formerly dwelt here, and were used by them
instead of lamps on their journeys to the coast. They were fifty or
sixty in number.

"This is a fortunate discovery," said Guy. "With these and the lamps we
may have sufficient light to last out our trip."

"Yes; that removes the last obstacle," rejoined Forbes; "and now I
propose that we take some refreshment. We have eaten nothing for nearly
two days."

This was true. The excitement had almost banished hunger from their
thoughts, but Melton's words roused their dormant appetites, and,
sitting down beside the canoes, they made a hearty meal and washed it
down with water from the river, which was quite fresh and cold.

"Well," said Guy, when they had all finished and the provisions were
tied up and put aside, "it will do us no good to remain here any longer.
The river, as you all know, is our only salvation, and the sooner we
start on our cruise the better. The natives who once dwelt here are
reported to have made journeys down this stream in boats. Is it not so,
Canaris?"

"Yes," replied the Greek. "I have heard from the Arabs at Harar that it
was their annual custom to go down to the coast in large rafts or boats
with trading goods, and then return by land."

"But where does this underground river empty?" asked the colonel. "Do