I'm coming home

What if Dean wasn't the oldest out of the Winchester siblings. What if they had a older sister.

Mary one day got into a fight at the age of 17 with John her boyfriend at the time. Retreating to a bar to clear her thoughts, she was drugged and well.....you know. Later on she found out she was pregnant.
Sarah Winchester grew up with her mother and her step father in peace in till she left to become a hunter like her mom.
She doesn't return in till a certain fire occurs. And she meets two boys that she never knew.

Years later as Sarah goes missing is reappears at Bobbys house with only four words crossing her lips "I need your help"
Can the two brothers save their big sister? Can Sarah protect her younger brothers from the danger that is soon to come? Or will they all go out together....

(THIS IS A REQUEST FROM ONE OF MY CLOSE FRIENDS LETS SEE HOW IT WORKS OUT. PLEASE READ!)