Lucas's handsome face went decidedly grim, but he said nothing.

"No," she said in a voice gone suddenly grim.

Whitney stared down at the stills, and his eyes went grim.

His face went grim, and he shook his head slowly.

As the echoes died around the room his face went grim.

His face had gone grim, the news was what he had expected, but bad all the same.

But then he turned towards the stairs and his face went grim and cold.

When his face went grim, she was sorry she'd said it.

Oliver, interpreting this in the worst possible sense, went pale and grim.

All the warriors looked around the clearing, their expressions going grim.