One of the interesting things about the Lizzie Borden story is that the whole family always kept the interior doors locked. In order for Lizzie to get to her own bedroom, she had to unlock her sister Emma’s bedroom door, walk in, lock it behind her, and then unlock her own door, go in, and lock it behind her.
What kind of family dynamic would result in this type of behavior?
It appeared to me, which informed the way I constructed the narrative, that each member of the Borden family lived in their own little world, not communicating on any meaningful level with anyone else.
Truthfully, very little is known about the personalities of the Borden family members. What is known has been written up in psychological journals, legal assessments, and endless (annual) speculation.
Before embarking on the journey of writing this book, I read everything that I could find, everything available, in law libraries, in university libraries, and in all manner of fiction and speculation.
My theories about what happened that day are influenced by fact, but are unquestionably fiction.