It was a split-second horror-stricken decision. Automatic. Systematic. Destructive. Yet, the moment itself seemed to have stretched into eternity.
She knew it. She was about to embrace her last seconds, but what was to lose? That flash of lethal green flit past Ginny's shoulder the moment Molly turned around to nurse the next injured. People were moaning, gasping, holding their breaths, but Molly didn't care. All she could see now was the taunting face of that monstress. How she was twisted, loathsome, barbarous, and as immoral as her Lord. Hell, Molly had detested her for decades, from the moment her actions were brought to the news. Yet it was only now, when images of Fred's smiling remains, Harry's lifeless body, and the countless carcasses she had seen and tended to for the past few hours emerged and fused with the hysteric figure in front of her did she realise that she had failed.
Lying on the ground were mostly the young, the innocent, and the inexperienced. They looked like grown-ups, perhaps, but it only added to the tragedy. They were still children, her children. Yet Molly had failed them; she had failed to protect the little innocence left in this putrid world; she had failed her pledge to raise her children safely. It was like a disease, spreading and contaminating the world she knew, and the guilt of having only erected a feeble blind over her own family was eating her inside out.
Not anymore. At the end of that eternity, Molly was determined. She knew she would not make it, and she knew it might not have mattered after all, but as a Mother, she was willing to take on the faintest belief that the power was her. She was convinced that by throwing herself at the enemy, she would be able to protect her family, to shield all of the children from further harm, and to, somehow, right her wrong.
"NOT MY DAUGHTER, YOU BITCH!" screeched Molly with all the sanity she had left. She felt that twisted sense of pleasure as she marched up to face her last opponent, and was surprised that it didn't stir one single ripple of disgust. That was right, she was morphing, transforming into the monstress she despised the most. She pushed aside the students - children - who ran to her aid with what was left of Molly Weasley; it was an adult's war, after all.
And they duelled.