Breaking Blood

Three families, tied by blood and affection.
They came far, recovering from the effects of the past. Forgetting about that phase and giving life a fresh start
Everything seems quiet, seven years after the Battle of Hogwarts.
The Wizarding World lives in a tolerant and pacified atmosphere.
But when Bella Malfoy, Draco's half-sister, discovers Tom Riddle's diary and brings him back to life, nothing will ever be the same.
Old quarrels and resentments will come back from the surface...
The burden of memories and past choices will make all certainties vanish...

Will their bond make them sail through it, or will it lead to their downfall ?