He moved to the other side of the window; the curtain didn't quite cover there.
The curtain covering the window in the door was raised, but they couldn't see anything inside.
Those particular curtains covered a door that lay behind them.
The lights were off and the curtains covered every window.
There was a moment's wait, then the curtains covering the window moved slightly.
At the moment a curtain covered it, draped against the night.
The curtains covering the windows in the house moved slightly.
Finally, he yanked open the curtains covering the far window.
No other doors were apparent, though a curtain covered the section of wall immediately behind the chair.
It was the curtain covering the window that faced the alley.