Her expression changed with startling suddenness as if a mask had dropped.

Pikhalas was quiet for a long time, and finally his expression changed as the mask dropped.

She nodded curtly as the mask of authority dropped firmly into place.

Once we spent two hours speaking Russian, and his mask dropped.

As steam wavered, giving her a view beyond the fire, she saw that the leader's mask had dropped again.

When it comes to the desserts, the exotic mask drops entirely.

It was as if a mask dropped in a flash over each face.

His face had changed, as if a mask had dropped away; he looked much older.

Then, for a moment, just a moment, the mask dropped from his face.

And for the first time since he had known her, the emotionless mask dropped from Penelope's face.