When Loretta gave her name, he thought for a moment, then his brow cleared.

Then his brow cleared, and he began to mount the stairs.

His brow cleared after the terrific mental exercise he'd been putting in.

He frowned for a moment, and then his brow cleared.

Charles's brow furrowed in thought for a moment, then cleared.

He pondered the puzzle for a minute, then his brow cleared.

Trevelyan frowned at him a little; then his brow cleared.

Suddenly his brow cleared, and he crossed to another panel in the wall.

She frowned at him for a moment; then her brow cleared.