It became, as it were, an excavated gorge.

High overhead, separated from him by cliffs of darkness, the searchlights wheeled and blazed, and the shining shapes went to and fro.

Giant voices called to one another above there, calling the Giants together to the Council of War, to hear the terms that Caterham had sent.

The gangway still inclined downward towards black vastnesses, towards shadows and mysteries and inconceivable things, into which Redwood went slowly with reluctant footsteps and Cossar with a confident stride....
Redwood's thoughts were busy.

The two men passed into the completest darkness, and Cossar took his companion's wrist.