go with them, and, considerably out of temper,
retired to his post of observation, where, as it appeared, he was
dividing his time between the discovery of distant specks on the horizon
line of the ocean and imaginary jaguars and pumas on the foot-hills.

CHAPTER XI

A NEW HEMISPHERE

With a tin pail in his hand, the captain now went to the cavern of the
lake. He wished very much to procure some better water than the last that
had been brought, and which Mok must have dipped up from a very shallow
puddle. It was possible, the captain thought, that by going farther into
the cavern he might find a deeper pool in which water still stood, and if
he could not do this, he could get water from the little stream in the
ravine. More than this, the captain wished very much to take another look
at the machine by which he had let out the water. His mind had been so
thoroughly charged with the sense of danger that, until this had faded
away, he had not been able to take the interest in the artificial
character of the lake which it deserved.

As the captain advanced into the dimmer recesses of the cavern, he soon
found a pool of water a foot or more in depth, and having filled his pail
at this, he set it down and walked on to see what was beyond. His eyes
having now conformed themselves to the duskiness of the place, he saw
that the cavern soon made a turn to the left, and gazing beyond him, he
judged that the cave was very much wider here, and he also thought that
the roof was higher. But he did not pay much attention to the dimensions
of the cavern, for he began to discern, at first dimly and then quite
plainly, a large object which rose from the bottom of the basin. He
advanced eagerly, peering at what seemed to be a sort of dome--like
formation of a lighter color than the rocks about him, and apparently
about ten feet high.

Carefully feeling his way for fear of pitfalls, the captain drew close to
the object, and placed his hand upon it. He believed it to be of stone,
and moving his hand over it, he thought he could feel joints of masonry.
It was clearly a structure built by men. Captain Horn searched his
pockets for a match, but found none, and he hastened back to the cave to
get the lantern, passing, without noticing it, the pail which he had
filled with water. He would have brought the lantern with him when he
first came, but they had no oil except what it contained, and this they
had husbanded for emergencies. Bu