Carol went out of the room and slipped noiselessly along the corridor.

She sprang to the curtain, and slipped noiselessly behind it.

He slipped to the floor noiselessly and joined her at the kitchen's single small window.

He slipped noiselessly across the sill of the library window.

Now, walking lightly that same way, Michael slipped noiselessly down to the first floor.

He turned with a swift tight shrug and slipped out of the room noiselessly.

A minute later a black shape emerged and slipped noiselessly through the air above them.

The other followed behind her like a shadow, slipping noiselessly from one pool of darkness to another.

She slipped noiselessly out of the room and up the great oak stairs.

Be back in a second," and he slipped noiselessly away.