Die, and disappear forever into the terrible blackness he'd glimpsed beyond the window.
A terrible cold blackness was at the center of them, but as Simon watched in shattered awe, it began to fragment into darting shadows.
Susan felt as if she had been enveloped in a terrible blackness.
He could feel her rage dissipating as fast as it had come, and what replaced it was a terrible blackness.
Tas felt himself sliding into the terrible blackness below him.
Then came blackness, sickening blackness, more terrible than the shadowy darkness of that sinister room!
And then the dark thing, the terrible blackness, and old Singh shrieking without any sound.
Death strode forward purposefully, a terrible blackness against the haze.
When the Dark comes rising, it is not as one man, but as a terrible great blackness filling the sky and the earth.
A terrible, machine-like blackness, Reason without Feeling, immense, monolithic, alone.