What if Dudley had a daughter? And what if that daughter just happened to be magical? And what if she just so happens to face the threat of the greatest magical threat since the time of the Founders. Slight AU as well.
What if Dudley had a son who was a wizard? Follow the story of Thomas Dursley as he has to deal with Hogwarts, the Potters, The Malfoys and new challenges and struggles. A little AU, which I will leave a small mystery and show you.