Baby Steps

Around the time Renesmee reached maturity and stopped aging, Carlisle and Esme found a baby girl abandoned in the woods and decided to make her part of the family. However, they didn't know she will be a certain Volturi tracker's blood singer in the future. Will the baby girl be safe in a house full of vampires? Will the Cullens manage to keep her a secret from the Volturi? How will everyone react to her being one's mate?