Even at the cost of his own life, he would never leave her.

They were successful, but at the cost of their lives.

These men would follow him, even at the cost of their own lives.

And it will be at the cost of my life.

I have known some men who kept that faith at the cost of their lives.

He had been offered freedom, even if only to run, but at the cost of another man's life.

Even at the cost of his own life he must prevent them from finding out about her.

Tried not to remember that the time he had was being bought at the cost of somebody else's life.

Although it's successful, it comes at the cost of his life.

You can try to help them all, and fail - perhaps at the cost of your own life.