Melaia finds herself in the middle of a blood feud between two immortal brothers who destroyed the stairway to heaven, stranding angels in the earthly realm. When the feud turns violent and Melaia becomes a target, she finds refuge with a band of angels attempting to restore the stairway. But the restoration is impossible without the repayment of an ancient debt—the “breath of angel, blood of man,” a payment that involves Melaia’s heart, soul, and destiny.