Dawnbringer

Battle the forces of darkness in the Forgotten Realms®
Two angels given mortal flesh are sent to guard two star-crossed lovers, born scions of rival merchant houses. At first, it looks as though love will conquer all, and the rift will finally be mended. But there are those who hate the word peace with a passion so much that it poisons everything they touch, corrupting house to turn against house, mother to turn against child, and angel to turn against angel.
Dawnbringer is the perfect meld between classic and contemporary fantasy, with shades of Romeo and Juliet, told from the perspective of guardian angels, in a world where sorcery and monsters are commonplace.
From the Paperback edition.