She was an assassin. They were young heroes. She was beaten for her mistakes. They were treated with care and kindness. They were heroes. She was a villain. What happens when their paths meet?

What if James Potter had a sister? A twin sister who was his complete opposite, but also his best friend. James' sister is of course a wizard. Her name is Aubrey Potter. Aubrey is a smart girl. She can figure out things faster then normal wizards. Of course, her brother, the amazing Potter, is always known before Aubrey. Aubrey was nicer than James, but no one cared. They all liked James simply because of his looks and his troublesome ways. It doesn't bother Aubrey because she loves her brother.

Percy Jackson and Harry potter have a secret. Each other. When they were eight, Harry and Percy potter were separated. The twins were attacked while in an orphanage, one going to the Dursleys, while other goes to a squib named Sally Jackson in America. The only person who knows about Percy is Sally and Dumbledore, besides the twins themselves. So what happens when the are reunited? Will they cause more harm the help? How will people react when they find out about Percy? And what if Voldemort is on the brink of rising? Find out in Harry Potter's Twin! * Takes place after BoO, but before the Wizard War *In this, Percy and Harry are both 17 and percy is starting out at Hogwarts, but at 7th year with Harry *DISCLAIMER- I DO NOT OWN PERCY JACKSON OR HARRY POTTER