Unexpected Nundu

Hadrian "Harry" Potter is not having a good year, he's escaped death again but now he's got another problem. His animagus form is unexpected. And he can't control shifting. So what happens when he's unexpectedly kidnapped, looses his eyesight? He shifts into a Nundu cub. Unable to control the change, Hadrian spends the summer learning and gets hit with life altering revelations.