Just when it was almost too dark to see, the room plunged into total blackness.

I saw no flashlight ahead, just total blackness of the sort you get only underground.

We could see clearly the walls and ground directly ahead of us, but beyond that, there was total blackness.

There was still total blackness but not quite dead silence.

And farther from the path still, the trees were in total blackness.

He was unable to see anything in that total blackness.

But in the almost total blackness he wasn't that confident of leading the group there.

The lights went out, leaving the room in total blackness.

It was the total blackness of the night that gave me the idea.

He walked forward, pushing the box before him, and entered what had seemed to be total blackness.