"If there was only some slope which led upward it would be more encouraging. But it's about as flat as a bit of prairie land."
Allen hopped over the stream, and, assured that he could easily retrace his steps if necessary, continued on his search, his firebrand held over his head.
It was a discouraging journey when the end was reached. Before him arose a solid wall not less than twenty feet in height, at which elevation the cavern appeared to continue. Allen gazed up at the wall with a hopeless look on his face.
"Humph! How in the name of creation am I to climb up there?" he muttered. "It's as steep as the side of a house and twice as slippery. If I can't find some sort of stepping places I reckon I'm beaten and booked to go back to where I started from."
Waving the firebrand to make it burn the brighter, Allen began to scrutinize the face of the wall before him. He started at one end, resolved that not a foot of the surface should escape him.
He had traveled along some fifteen feet when he came to something that made him start back in astonishment.
