The barest flicker of emotion crossed his hard features.

Waringlow's impassive face showed the barest flicker of a smile.

A look passed over her face, the barest flicker across that calmness.

His lips twitched in a bare flicker of a smile as he took her arm and led her to the door.

She detected the barest flicker of vulnerability before his mouth suddenly kicked up and whatever it was she'd seen vanished.

There seemed to be the barest flicker coming from over where the roller coaster had been.

Only the barest flicker of her expression showed joy.

"I already asked that question," McCoy said with the barest flicker of a smile.

Off to the left there had been the barest flicker of movement, then nothing.

He spoke to her mind, but there was no response, only the barest flicker of life.