From behind them came the sound of bolts sliding back.

Then came the sound of a bolt sliding back inside.

A minute later she heard the door close and the bolts slide home.

After a moment he heard motion, the sound of a bolt sliding back, and the door opened.

Then a bolt slid back and the door swung open.

She smiled at him and went out; the bolt slid into place.

They heard the heavy bolt sliding back and the door was thrown open.

The door closed and the bolts slid heavily into place.

Then the bolt slides back until it comes off the carrier.

He quickly closed the door; the twin dead bolts slid back into place.