Then he turned on his boot heel and left the room.
The heel of his boot came down on her hand when she started to get up.
In the other, she still carried the heel of her boot.
And then, with his boot heel, he ground it out.
She dug at the ground with the heels of her boots, thinking.
The sound of his boot heels echoed on the floor.
Green took a bullet in the heel of his boot.
There was another faint sound that might have been boot heels on a floor.
He took the stone from her and crushed it under his boot heel.
She was almost at the door when he said, "What about the other boot heel?