Silver

Silver is best known for her loyalty to Lucky and her pupil-less, completely white eyes.

Silver was born to Proelia and Fedem. She was convinced she was an only child for years, and was appalled when her mother told her she had had countless litters, all stillborn, but she acted like she knew it all along ten seconds later.

She never got along with her parents, especially Proelia. They often argued, with Fedem always taking the side of her mother. Proelia despised her friendship with Cabayo, and she technically wasn't allowed to see him, though she did all the time.

 The Death of Cabayo 

It had been a day like any other up until Cabayo showed up. He said he wanted to check out the Rock, and Silver reluctantly agreed. They went to it, and Cabayo looked first. It ended up killing him, and Silver was so devastated she looked as well, hoping it would take her, too. Instead it just made her eyes white. She was about to drown herself in the river when she saw Lucky's dead body floating by, and she pulled her out. They were friends ever since.

 Eyes 

Silver's eyes give her the ability to see in the dark, as well as illuminate dark areas. At one point they were also able to see through Bones' illusions, but seemingly not completely, as she would have noticed that they were just standing in the Infinite Field.