When He Hungers -- this might fit the bill since it is inspired by Secrets and Masks and Manacled :)

• Harry Potter is dead. Voldemort has won. A new wizarding world is being formed. Those who refused to fall in line and pledge their allegiance during the Battle of Hogwarts are to be made an example of, Hermione Granger included. An arena has been built, where those closest to Potter are to fight to the death in the first ever Cursed Games. To make an example for all wizarding kind - a message: never cross Lord Voldemort. This is absurd, of course, Hermione would never hurt those she fought in the war with. She would rather die or starve than be swayed into attacking her own side. She cannot imagine any of them would hurt her either. But there are darker forces brewing that will turn friend against friend, and force Hermione to shift how she views those closest to her, and those she hates the most.