The Forgotten Twin (Harry Potter/Doctor Who)

Prologue

I'm Laura Sigma, one of the last of the Time Lords, but I'm more commonly known as Laura Lupin, or Laura Potter to the ones that I tell. Everyone else thinks I'm dead. I'm not your average Time Lord. I'm able to use magic, as in a wand and everything. My home planet, Gallifrey, was destroyed in the Time War between the Time Lords and the Daleks. My dad, Theta Sigma, more commonly known as the Doctor, was a front line soldier. He sent me to Earth to live as a human, as I was a Princess of Gallifrey, and with that position came being Princess of the Universe. The Daleks could never get their hands on me, as I was and am the only person who can change the universe.

My dad sent me to a family on Earth, the Potters. He also sent my brother to live with the Potters, Harry. We have no parents though; they died trying to protect Harry and I from the evil wizard known as Lord Voldemort. Voldemort tried to kill us, but we ended up surviving with only a lightning scar. Harry's is on his forehead, mine is on the inside of my left wrist and as Voldemort tried to kill us, he ended up killing himself with a rebounding curse. Harry lives with our muggle aunt and uncle now, and I live with my godfather, Remus Lupin.

Uncle Remus is a werewolf. I was given the job of looking after him at full moon. Other than that, he's pretty normal. He's nice, a loving surrogate father and seems to enjoy the job of raising me.

I got my Hogwarts letter a few days ago, even though I'm turning 14. Uncle Remus told me that Harry was in 4th year and I would be in the same class as his, even though it's my first year. I hadn't actually had contact with Harry since we were one, when we were split apart. Uncle Remus said that Harry also thinks I'm dead, even though they never found a body. So, surprise to him this year.

I'm heading to Hogwarts on the 1st of September. And basically, that's where the story begins.