Angelfire is a series of young adult urban fantasy novels by author Courtney Allison Moulton, beginning with the inaugural entry of the same name.

The story follows a teenager named Ellie, who learns that she is actually the reincarnation of a powerful warrior, tasked with aiding angels in their battles against demons on Earth.

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.

Wielding twin khopesh swords, and an immense power called angelfire, Ellie begins a slow journey of adjustment to her role.

[2] 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.

[4] Prior to creating Ellie, Moulton developed a fondness for stories about "quirky, but strong heroines who have these enormous supernatural destinies".

[7] While developing the combat, Moulton researched Egyptian and Acadian weapons, ultimately equipping Ellie with a pair of khopesh swords.

[10] Amidst the release of Angelfire, her Website listed numerous tracks which Moulton recommended listening to during portions of the story, along with links to services which offered such tunes.

[17] In a review of the first novel, Publishers Weekly commended the "clarity of the fight scenes," likening them to moments from Crouching Tiger, Hidden Dragon.

"[6] Kirkus found the story mediocre, conceding that it had a "convoluted but interesting angel angle", but criticizing it for an overabundance of minutiae, exposition, and action.

[18] A review from The Bulletin of the Center for Children's Books noted the "intensity and adrenaline" of the action scenes, and stated that "Ellie is likable both as a high-octane heroine and a regular girl coping with family and social drama."

"[20] Jodi Meadows applauded the book for exploring both sides of Ellie's life, citing the character's "unwavering loyalty" toward the human friends she protects.