Loathed blood (фемслэш)

Years after the war, Pansy Parkinson has clawed her way back into wizarding society—not forgiven, but tolerated enough to run the most successful potions business in Diagon Alley, where she hides her fire beneath sharp suits and sharper sarcasm. Haunted by her family name, past alliances, and the pressures of the Sacred Twenty-Eight, she lives a life of control, distance, and solitude… until a letter offers her a chance at redemption she didn’t know she craved.
Hermione Granger is burnt out, politically disgraced by a scandal, and stuck in a dead marriage to Ron Weasley. While retreating from the public eye, she uncovers the rise of a new extremist group targeting pure-blood families and is summoned to Hogwarts under the pretence that her presence might dissuade violence. There, she crosses paths with her childhood enemy: a cold, cunning Slytherin she despised.
What begins as mutual disdain fractures into something darker and far more dangerous. Pansy may be on a hit list. Hermione may be running from more than just scandal. And both of them, who never should’ve shared a thread of trust in each other… may be the lifeline no one saw coming.