Prior to creating Ellie, Moulton developed a fondness for stories about 'quirky, but strong heroines who have these enormous supernatural destinies'. He has always kept this secret from her throughout the centuries because he fears how it might complicate their mission and also because it is forbidden by the one who gave him this responsibility,' she said. 'It's his job to protect her even though she's doomed, but she means more to him than just his charge because he's in love with her. While watching a film adaptation of The Time Machine, Moulton became curious about writing a character 'who wouldn't stop trying to save the person he loves.' This led to the creation of Ellie's longtime guardian, Will. Stine's Goosebumps and Naoko Takeuchi's Sailor Moon, having grown up a fan of both. Moulton has also noted the influences of R. She has claimed to draw inspiration from a variety of sources, including film, music, martial arts, and Eastern cultures.

Prior to Angelfire, Courtney Allison Moulton's creative background consisted of artwork and photography. Wielding twin khopesh swords, and an immense power called angelfire, Ellie begins a slow journey of adjustment to her role. Will also reveals himself to be a mystical soldier sent to assist Ellie, having served as her guardian for centuries. With each reincarnation, she becomes more human, though she fails to remember her past lives. A boy named Will reveals that Ellie is the reincarnation of an ancient warrior known as the Preliator, continuously reborn (after falling in battle) to aid angels in their fight against the reapers. Angelfire introduces Ellie Monroe, a teenager who discovers that the monstrous beings in her dreams, called reapers, are real.

The reapers are the angels summary