He went out, then turned back for just an instant.
For an instant, she felt nothing under her feet at all.
For an instant he didn't understand what had happened to him.
Had she really seen them go dark for an instant?
For an instant he held her face between his hands.
For an instant I had a sense of coming home.
For an instant the door left my control and began to open!
For a single instant his eyes looked down toward my moving hand.
For an instant, their eyes met and he got a good look at her.
For an instant he did not seem to have heard.