Abbeville. 1916. Evanie, a young girl working in a war hospital is awaiting a letter from her brother. Waiting by the post-box, she struggles to see the light side of life. The Lighter Realm. Unknown year. Seraphyna, a princess struggling to win a war against the tyranny of her brothers seeks a new way to win the fight against Darkness for Light. Desperate, she turns to the power of the souls of two people in another realm. Evanie, the girl by the post-box and Sebastian, her brother at the end of the pen. As Evanie and Seb are plunged into a new, intriguing, lighter realm, they learn infinitely much about love, light, darkness and the power they never knew they held…