abysm

The sylph-like ease with which the Countess floated over this foul abysm was miraculous.

I believe that the hour comes when the knell of kings is to peal; that an evil genius pushes monarchy unto the abysm.

But they had moments of fearful suspense as they sank slowly down into the black abysm.

The novelists indeed can show that the beginning of their history is lost in the abysm of time.

The low gurgling of the wonder-working stream might be heard issuing from the depths of the dark abysm.