After they stepped inside the hatch, the panel slid noiselessly down behind them.

A door opened where none had been a moment before, sliding noiselessly to one side.

At last with a sigh Bobby let himself slide noiselessly to the ground.

He took a shot across the forehead and slid noiselessly to the floor.

The door slid noiselessly back and I passed through.

It slid back noiselessly, and she looked down into it.

"And so ends a romantic conversation," I said as the door slid open noiselessly.

The elevator stopped at the top, the doors sliding open noiselessly.

The wall slid noiselessly back into place behind him.

Behind him, a panel in the wall slid back noiselessly.