Down five steps there were two more stone roorns in perpetual darkness and with little air.

Not for him a life of perpetual darkness and disfigurement-revenge was his deliverance.

The other world's orbit kept one face locked toward the first, with the other in perpetual darkness.

Those who have chosen to live in perpetual darkness below ground will still form their own societies and communities.

The sky had vanished and we were in a perpetual darkness the rays of the sun can never penetrate.

Earth would then present the same side to the sun at all times, so that one half the planet would be in perpetual darkness.

I have about a month and however many days until perpetual darkness.

Winter, with its almost perpetual darkness, began on Saturday.

Hours dragged by, though time had little meaning in the perpetual darkness.

The apes trembled at the thought of perpetual darkness by night.