The mine's mine and I know every step of the way.

How's that for a joke, eh?
The mine's mine." Then he chuckled gleefully as they followed him silently down the steep slant.

The hole was just big enough to permit them to walk upright, although the Scarecrow, being much the taller of the party, often had to bend his head to keep from hitting the top.
The floor of the tunnel was difficult to walk upon because it had been worn smooth as glass, and pretty soon Scraps, who was some distance behind the others, slipped and fell head foremost.

At once she began to slide downward, so swiftly that when she came to the Scarecrow she knocked him off his feet and sent him tumbling against Dorothy, who tripped up Ojo.

The boy fell against the Horner, so that all went tumbling down the slide in a regular mix-up, unable to see where they were going because of the darkness.
Fortunately, when they reached the bottom the Scarecrow and Scraps were in front, and the others bumped against them, so that no one was hurt.
They found themselves in a vast cave which was dimly lighted by the tiny grains of radium that lay scattered among the loose rocks.
"Now," said Diksey, when they had all regained their feet, "I will show you where the dark well is.