The reverse animagus challenge.
It as been pretty much proved that magical animal are more intalligent than their non-magical counterpart (Hermione's cat and Harry's owl are example of that)
So what if one of these genius animal put in a dangerous situation did something similar to accidental magic to hide it self and ended up turn into a human?
Years later after getting used to magic and learning to live as a human it meet Harry Potter ( in any years altough i believe the start of the 3 years would be best) and become a mentor to him
Condition for the Challenge:
Manipulative Dumbledore (Can be good or evil)
Ron bashing ( or at least no longer Harry friend, the guy isn't a loyal friend)
Molly bashing (Far too motherly toward Harry)
No Slash( Yuri is accepted however)
Optional:
Blood adoption of Harry by the reverse animagus Tg(can be the result of the blood adoption if the reverse animagus is female(What gotta stay true to my name,
i just love the akwardness of getting used to a new body))
Redemption of Snape(Him SLOWLY realising that Harry isn't James Potter V.2)
If before 5 years and if the reverse animagus is female, ship her with Sirius(Let's throw the old dog a bone)
READ ME:
Here is an example of a dangerous situation for the reverse animagus at the start of the story:
the reverse animagus is a snake in a magical pet shop, because of the whole Voldemort thing people start to dislike snake as pets,
seeing this the owner of the shop decide to get rid of all the snake ( he kill them) the RA manage to escape, but is about to be found.