Harry Potter and the Big Family Secret

by Lilly Demoncieur-Cullen

What if Hermione and Jessica Granger aren't twins, like they always thought they were, and Jessica actually is Harry's twinsister? What if their mother is still alive and well but in hiding? How will Hermione, Ron and Harry react if Jessica is sorted in Slytherin. How will Slytherin cope with this? Rating may change later on. I'm sorry for the sudden small changes.

1. Prologue

Disclaimer: Everything belongs to J.K. Rowling, except the plot and Jessica.

Prologue

It was a beautiful summer day in the cozy sun-drenched London. Different wizards families were a day out at the Diagon Alley to buy their necessities for a new year at the famous Scottisch wizard school Hogwarts School for Witchcraft and Wizardry. Some of the kids started their first year at this school, like Jessica Lily Granger and some kids started their fourth year like Harry James Potter, Hermione Jeanine Granger, Ronald Billius Weasley and Draco Abraxas Malfoy.

It was September 1st 1994 and the students gathered at platform 9¾ to get on the Hogwarts express to travel to Hogwarts, also our friends Harry, Ron, Jessica, Hermione and Draco. Draco took seat with his trunk and owl at a compartment with his friends Vincent Crabbe, Gregory Goyle, Blaise Zabini and Pansy Parkinson. Jessica and Hermione shared a compartment with Neville Longbottom, Harry and Ron. Soon would start an exciting year at Hogwarts, with a bunch of secrets that will be revealed and drama's that will go with it. Are the people that see each other as family really be family or is it just a scheme?

N/A: I hope you liked it. It was originally written by me in dutch, but I figured I could try to translate this to English, so it's easier to finish this. I got stuck in Dutch, so I hope I can finish it in English in the way I wanted it to be. Don't bash me please, this was my first real fanfic I started a couple of years ago, I lost it due to some Private stuff, so I had to rewrite it. Let me know what you think via review, thanks in advance. I decided to rewrite it once more, you could rather say I made some small changes, like their age and their the year their in. Jessica will still be the same age as the others, but due to some interactions they make with one another I decided it was for the best if they were fourteen years old, instead of eleven years old.