How did you invent the characters for the Brennan sisters? Did you have role models for them?

The Brennan ‘family’ came to me through the parents—Tom and Marilyn Brennan, and the rest of the family just came from there. I never really know where actual characters come from but once they’re born in my imagination, that’s who they are. I don’t even end up tweaking them a lot. They come into my mind as whole, real people, and it’s up to me then to tell their stories to the best of my ability. And no, I didn’t have role models for them. Just those pictures in my head and their conversations…because once the Brennan sisters started talking, they wouldn’t shut up!  ☺