Before its echoes had died, another came in from the south.

I was out of the car and on my way before the echoes died.

When the echoes had died away, they could hear no sound.

Before the echoes of the shot had died she was making her way toward their source.

Before the echoes had died away, Blue was on his feet and running for the bedroom.

It came again before the echoes of the previous sound had died away.

As the echoes died around the room his face went grim.

As the echoes died, the security chief stopped in his tracks and turned around.

A sound was waiting for them when the echoes of their enthusiasm died.

And by the time the echoes died down, the pounding had stopped.