Summary: They call it the War of the Two Half-Bloods, a cataclysm which will decide the fate of both the magical and non-magical worlds, and all sapient life living within those worlds. After Albus Dumbledore's death, Lord Voldemort begins his reign of terror, and in the process and in his arrogance he unleashes a darker and deadlier power than anyone had ever imagined. The Sign of the Penumbra, the darkest omen known to the magical world, appears, warning the world of the cataclysm that approaches, because behind the scenes, invisible to most but nonetheless present, an ancient conflict is raging.