Twilight's Son - The Fallen Series Book 1 and 2 — Erin Sinclair

First class homicide investigator, Lieutenant Detective Brie Carter, is falling in love with an angel. Brie is the former heavenly companion of Ezekiel, Angel of Earth, guardian to human beings. She chooses to serve humanity by returning to the physical world as a police officer in Denver, Colorado, while Ezekiel stays angelic. When he realizes he does not want to exist without her, he descends and becomes human, now calling himself Shade, as he is only a shadow of his former self. The love Shade holds for his beautiful counterpart is potentially endangering her mortal life when his choice to become human does not sit well with Uriel, the Archangel of Judgment, who believes their union to be an abomination. The Archangel descends to Earth to stop the lovers at all costs, even if it means Brie's demise. Both angels soon learn, to become human has very powerful consequences, not only for those they become involved with, but for them. Will Shade and Brie's love for one another withstand the pressures of human existence? Will they be able to resist the implacable Archangel of Judgment while guided by the greatest reward humanity has ever received - the gift of free will?