The ground trembled under the feet of the invaders, and rumblings and grindings welled up from subterranean depths.

Even the dwarfs, at home in the subterranean depths, filled their holds with fires and torches and lanterns.

Darkness was the true master of the subterranean depths, and this chamber was hardly free from its rule.

Guided tours explain the earliest chapters of this ancient town with a visit to its subterranean depths.

A pause, then came an answer; a faint tap from subterranean depths.

Sometimes they seemed to float downwards from the black battlements, sometimes to issue from subterranean depths far in the hill.

The Jurong Rock Caverns look to subterranean depths to optimise land use.

Bright, austere, and streamlined, it provided a jarring contrast to the subterranean depths of the cavern.

As technology improves and existing petroleum reserves wane, exploration will continue to dive into the subterranean depths.

Jafar asks Aladdin with a psychotic laugh in a voice that descends to subterranean depths beyond bass levels.