Four clean headshots insured that the dead men dropped noiselessly.

The man's gun dropped noiselessly at his own feet.

The Shadow's cloaked figure dropped noiselessly through the square opening in the ground.

He went to the window, and, flinging his leg over the sill, dropped noiselessly to the ground.

Then he, like his agent, dropped noiselessly to the ground.

The elevator door closed and the car dropped noiselessly.

The little sphere dropped noiselessly to the ground and the wire whispered away into the darkness.

As they did so a tall black shape dropped noiselessly from the wall behind them.

The two men whirled as a shadow dropped noiselessly from the deck immediately above them.

Dropping noiselessly to his knees, he looked to see if the room to the right of the one Gunner had entered was empty.