Author's note: Simon is my favorite Firefly character.
Simon Tam was in mourning. He had lost his sister.
It took him a long time to recognize this, when she was always before him, disrupting his life, enchanting and frightening everyone around her. But the River he knew was gone and would never return. His little genius best friend had died, and in her place he had an alien creature he did not know.
Alone at night, he mourned his sister quietly, but during the day he never showed her any regret, for he could not love the alien creature any less than he had loved his best friend.