The body lay behind him, under that of its mother.
He had a good idea of what lay behind it.
He looked at me instead, and I knew exactly what lay behind his smile.
We laid a few miles behind us without saying anything to each other.
He gave me a long, hard look, and I couldn't even guess what lay behind it.
Whatever lay behind that door, she didn't want to know.
Together, they'd found a way to take the hurt out of what lay behind them.
Finally we lay behind a tree and I looked around it.
But if murder lay behind the game, the story would be different.
He watched it for a while, and then lost interest in what lay behind him.