To the left nothing could be seen but black rock, but on the other side an open space yawned, perhaps twenty feet across, its bottom imperceptible.

The horses stumbled over the rough stones, held only by Moore's firm grip on the reins, and the light began to fade as they descended.

At last nothing appeared above but a narrow strip of sky, and the glimmer of sun had totally vanished.

Almost at the same moment the driver released the creaking brake, and at a trot the wagon swept forward between two pinnacles of rock, and came out into an open valley.
The transition was so sudden and startling as to cause the girl to give utterance to a cry of surprise.

She had been clinging desperately to the seat in front, expecting every instant to be hurled headlong.
Intense fear gripped her and it seemed as if every drop of blood in her veins stood still.