Prompt word: Rage
Word count: 300
He scared her sometimes. When he got angry. His usually friendly face would darken as storm-clouds passed over it.
His eyes would turn hard and cold, freezing over with that inner coating of black ice.
She remembered the times it had happened. The Racnoss Empress, screaming with despair and grief as her children drowned, and the Doctor, watching, his face lit by the leaping flames.
That was the first time she had seen him angry.
And now, again, he was scaring her. He towered over the shrinking alien, his angular face disfigured by righteous anger. "She wasn't hurting you! You didn't have to kill her! "
Donna glanced down at the body slumped on the floor, and quickly turned her face away. She hated the high cost of this life. Sometimes she wondered whether all these sacrifices were worth it. Would she die like this? Maybe, she thought, but if I do, at least I'll know I died making a difference.
She thought of the girl's last moments, as she flung herself in front of the Doctor, deflecting the blast with her body. I think she thought it was worth it, Donna decided.
But the Doctor didn't. She could see that. He was furious, letting his rage take hold of him.
She stepped forward, putting a hand on his arm. He turned to stare at her, breathing heavily. "Doctor." she began softly. "Don't do this. It was her choice, no-one else's. There are other ways."
The Doctor stared at his companion, his hearts heavy as he remembered that she was right, as he remembered his pacifism. This was why he travelled with humans, he reflected, because they could help him become a better person.
He broke into a huge grin.
"Donna Noble!" he exclaimed. "What would I do without you!?"