narastająca ciemność

The work was hard, and harder still in the gathering darkness.

I stared, trying to meet her eyes through the gathering darkness.

In the gathering darkness she could not make out his expression.

Since it was after seven and the sun had already set, the water looked more gray than blue in the gathering darkness.

He turned round and walked off into the gathering darkness.

She sat very still, staring ahead of her into the gathering darkness.

For almost two hours they walked in the gathering darkness.

He sat down, then lay on his back and looked up into the gathering darkness.

The garden was suddenly still again in the gathering darkness.

With the gathering darkness of early evening, the house seemed empty.