Kate O'Hearn crea avventure high fantasy con eroine forti, compassionevoli e amanti dell'avventura. Cresciuta come l'unica ragazza tra fratelli, ha notato una mancanza di protagoniste femminili nelle storie d'avventura. La sua scrittura mira a bilanciare questo squilibrio, dimostrando che le ragazze possono essere coraggiose, forti e avventurose quanto i ragazzi. Insiste sul fatto che le avventure sono per tutti.
Freya is a Valkyrie, a reaper of souls. But she hates what she must do. She doesn't like humans and the pain they inflict on each other, and she never wants to visit another battlefield. But when a soldier begs her to help his family back in the human realm, she agrees and discovers a world of friends. Now she'll have to find a way to keep her promise to the soldier and prevent the wrath of Odin from destroying the world
When Pegasus, the majestic winged-stallion, crashes on to her roof in the middle of a storm that blacks-out New York City, 13-year-old Emily's life becomes that of legend.