Ambientem (смешанная)

Magic is an eco-system, and the magical world has been culling magical people and creatures for generations. It has finally gone too far - and the collective consequences are finally being felt. When magic starts disappearing, crumbling quietly in post-war Britain, it causes a cascade effect across the wizarding world. Not a single magical child has been born in almost a decade.
Twenty-three-year-old Harry Potter discovers this when the wards of Diagon Alley literally come crashing down on top of him. So ends the life of the Boy-Who-Lived. Yet again, he returns to the station between life and death.
With a new chance in a new world, Harry - now eleven-year-old Harry Fleamont - is given a chance to figure out how to save his dying world. In a new world that seems much more perfect in every sense of the word, Harry is faced with a growing threat from a much more dangerous Voldemort, and the reality that jumping universes just makes vulnerable and poor wizards who just want to eat a regular meal and afford to buy a pair of Merlin-damned socks.