Prologue

Mia Weasley, the Weasley nobody knew about. She was born at 7 months, weighed 3.5 pounds, and was the same year as Ron.

She was sorted into Slytherin, so nobody cared that she was Weasley's sister. Ron was the one that mattered since he was part of the Golden Trio.

Mia is good at hiding things until they can't be avoided anymore.