Quantum Entanglement

Voldemort won. The last of the war criminals Hermione Granger is about to face public execution. Except - it doesn't work out that way. What would you do if you went back twenty years in time? With nothing to lose, Hermione creates a ruthless deception. She enters Slytherin as pureblood Hermione Black with one thing on her mind: Revenge. Unapologetic trope-abuse.