Mitexi made a small noise that could have been a laugh if her face had not been a stony mask.

She took a deep, shaky breath, and her face cleared into a stony mask.

His face was a stony mask.

King Casmir's face had become a stony mask.

His face settled into a stony mask.

Sopek nodded, his face now a stony mask of dignified Vulcan equanimity.

The Elven Knight's face was a stony mask of disapproval.

Ariadne's face turned into a stony mask.

Assurna's face smoothed into a stony mask and her head began to recede between her shoulders.

His face was a stony mask, but his eyes burned.