Fallen Angel: Prequel To Ominous Love (Ominous .5)

When Devlin arrives late for the birth of Eloise O'Connor, he can't believe his best friend has taken over his position as her guardian angel. Though Devlin pleads with him to hand the child's guardianship back over to him, Nathaniel refuses.
The two guardian angels have been friends for thousands of years, but after seeing how tiny and vulnerable the baby is after a difficult birth, Nathaniel isn't willing to risk her life with a tardy, irresponsible angel. Devlin's new obsession with fallen angels and sexy women seem to be affecting his judgment and Nathaniel believes he's planning to sell his soul, which would put Eloise in even more danger.
Outraged, Devlin accuses Nathaniel of betrayal and threatens to guide Eloise with or without his approval. Though Nathaniel is devastated at the loss of their friendship, he battles with Devlin for years. As Eloise grows into a beautiful young woman, Nathaniel becomes even more vigilant, but when he discovers that Devlin's found a way to communicate with her, he goes into a fit of rage he never thought possible.