mars77
Regulus Black watched James Potter die.
He tries to live with it. He can't. Grief curdles into obsession, and obsession into something sharper-a certainty that time isn't as fixed as everyone claims.
Ancient magic whispers of a way back, but it demands more than Regulus can give on his own. But saving James means more than defying the past-it means destroying Voldemort, ending the war, breaking the future open with his bare hands if he has to.
Regulus has already seen a life without James. He refuses to see it again.