Ok. So I have more written for this but it's in a book. And I can't be bothered to type it up, especially seeing that I always find faults in my writing and it drives me insane and takes forever. So I am not writing anymore. I'll just say the plot so maybe someone with enough patience can write a FanFic about it.
Ok so Edward meets this Vampire, Ceridwen, who is like permanently 13 years old. She has been around as long as the Volturi have and guess what … she is Caius mate. OMGsh[Not classified as Pedophilia because back in the days you were expected to be married by 15
She had been living with the Volturi when Carlisle came to visit. Why you don't about her from Carlisle is because [well I never really thought about that. Anywhooz, she saw the way that Carlisle had decided to live and realised that it was a better way of living instead of feeding off humans. She and Caius tried to reason with each other about the 'right' way to live and in the end she ended up running away. It was very hard for her and yeah.
So then she tries to help Edward find Victoria, which doesn't work out, as usual. So then Edward gets the Call from Rosalie and decides to go to the Volturi. Ceridwen doesn't want to go back because she doesn't think Caius will accept her back, or he will think badly of her or something.
But eventually he convinces her to go with him to Italy. When she sees Caius, it seemed that they were never apart, and they realised how hard it was to live without each other and they don't disagree on the way they live yada yada ya.
And that's when it would end…Soughta… Tada Jazz Hands