A dark gray mask showing all of its molars is also strange.

Yellow eyes peered at him through a dark mask.

Ramsey's face was a dark mask of fury and hatred.

He saw Thcido's face only as a dark mask in the darkness around it.

It was like a dark mask was pulled down over his face.

The head is white with a dark mask across the eyes, reaching to the sides of the neck.

He touched it; the dark mask of blood and dust vanished.

"As you command," she murmured, her face a dark mask.

After a moment, her dark mask lifted and turned in Uhura's direction.

The dark mask may also reduce glare and thus enhance night vision.