Surely there must be some way of getting out of here.

For one, I am going to try." He looked up at her, but with no gleam of hope in his eyes.
"I have tried," he replied despondently, "but it is no use.

We are buried alive." "Yet there must be ways out," she insisted.

"The air in that passage was perfectly pure; do you know anything about it ?" "Yes; it leads to the top of the cliff, up a steep flight of steps.
But it is impossible to reach the passage, and since these Mexicans came I have reason to believe they keep a guard." "They were not here, then, at first ?" "Only for a few days; before that two rough-looking fellows, but Americans, were all I saw.

Now they have gone, and Mexicans have taken their places--they are worse than the others.