The secrets we keep

After the war all students have been required to return for their last year. But with the pain and heartache of the war still fresh and raw how will everyone cope? Especially since many of them have come into their secondary gender and are all still grieving. One student that is now being forced to return is Draco Malfoy but he isn't who he used to be. He's changed and it doesn't look like a good one. Why does he have a stutter and what's with the walking cane?