I'm not writing my novel yet, but I am doing a rough outline of de story I have in mind so I won't forget, but I have a doubt. It is of extreme importance to my story that I write about events prior to the protagonist's birth that occurred with the protagonist's parents, but I don't know how I should do it. Do I write a big prologue (about 50 pages) or do I start the story with these events? My novel will be an historical fiction and these events that occurred with the protagonist's parents will present the antagonist of the story. So, do you think it is to weird to start the novel without the protagonist, but with the antagonist?