Whoever had opened the door was only a tall, dark shadow.
The tall shadows were almost on top of her.
He had finished three canteens of water when a tall black shadow stood over him.
Miri looked where he was looking, saw the tall shadow moving toward them from the house, and sighed.
Suddenly he thought he saw something moving: a tall, dark shadow.
But he couldn't see them very clearly, because of the tall, brooding shadows that surrounded it.
Then she saw a tall, gaunt shadow leaning against the opposite wall.
In the foggy street behind them, a tall shadow moved from a doorway.
Jack gave a final wave, and the tall shadow waved, too.
The tall shadow within the doorway moved faster than either of them, and to better purpose.