My eyes in an instant swept round the horizon.
The "Terror," as I had thought, rested quiet on the ground.

She was in the midst of a rocky hollow measuring from fifteen to eighteen hundred feet in circumference.

A floor of yellow gravel carpeted its entire extent, unrelieved by a single tuft of herbage.
This hollow formed an almost regular oval, with its longer diameter extending north and south.

As to the surrounding-wall, what was its height, what the character of its crest, I could not judge.

Above us was gathered a fog so heavy, that the rays of the sun had not yet pierced it.