Draco Malfoy and the Order of the Phoenix

I have this hilarious idea for a fic After Voldemort's return, Harry is spending the summer at 12 Grimmauld Place with his godfather. He wakes up the first day and comes face-to-face with...Draco Malfoy. I wish I owned Harry Potter but unfortunately, I don't. AU where Andromeda Tonks realized Sirius Black never got a trial and notified Amelia Bones about it in 1986. Sirius Black