His yellow teeth were bared in a ghastly grin.

His face moved into a rather ghastly grin.

He was trembling like a horse after a race, but he still managed a ghastly grin for her, despite his many wounds.

Then the flesh faded away, and the skull and teeth showed through in a ghastly grin.

Like this" - and he assumed a ghastly grin.

He gave her that ghastly grin again, that wide death's head smile, and he took one step toward the door.

Carfilhiot drew his lips back in a ghastly grin.

He gave his brother a ghastly grin, his teeth outlined in blood.

He swallowed hard, and gave me a rather ghastly grin; he wasn't drunk enough not to be scared.

At last he turned Glyneth a ghastly grin.