Avada Kedavra

She raced into the house under the image snake protruding from a skull's maw blazed into the clouds casting a darkness in the hearts of all who saw it. Petunia felt her heart was the darkest. It was heavy with regret and franticly beating trepidation. /This is an AU where Petunia is a Death Eater, sorta an experimental idea, but I think it works.