He suddenly gets lost in the dark abyss that is within the house.

But at last a noise of footsteps was heard in the dark abyss.

He would stand there and watch her tumble away into some dark abyss.

No one should have to stare into that dark abyss.

He started to go down into a dark abyss, then came straight back up.

He stepped into the dark abyss and the others followed.

Had they gone down into this dark abyss never to return?

The human mind, he thought, simply could not comprehend that "dark abyss of time."

She knew that he thought of jumping into the dark abyss.

He gazed down into the dark abyss - nothing was to be seen.