These Grim Bones

Sirius Black is freed from Azkaban after a month's imprisonment only to find that the Wizarding World thinks him guilty. DMLE Hit Witch Amelia Bones is ordered by Fudge to find a reason or make one to bring Sirius back to Azkaban, and is torn between her orders and her honor, while Albus Dumbledore tries to figure out where he went wrong and why Sirius betrayed his friends.