Prisoner of Azkaban

I would kill for a spin off based on the original Order of the Pheonix, following how Lily and James met, how the boys create their animagus’, Lupins transformations, the planting of the whomping willow, bullying Snape, etc. Their whole journey from high school to after, eventually joining forces with others against Voldemort and his death eaters, up to the night of Pettigrew’s betrayal and Voldemort’s downfall…