After Evie finds out she is a Seraph, she learns of the other supernatural beings that walk the Earth. Creatures she both dreamed and feared of since she was young. Unfortunately, Reich der Engel, the homeland of the Seraphs, is on the verge of civil war. Evie soon finds out that Engel's fate is in her hands. Quickly, she must learn what it takes to be a leader before the moon swallows the sun in everlasting darkness.