Draco Malfoy.

Draco was as usual, talking to his friends without paying attention to the new students' house choice, since it was the first day of his third year at Hogwarts.

However, one name caught everyone's attention, enough to start whispering and surprised faces on the faces of those present

McGonagall: Abi Potter..

Harry Potter had a sister? Draco thought, but he was also happy, he would have someone to bother for a long time.