I do not regret the price I paid for my love for you. But I do regret what it has cost you, all your life. And I have never stopped regretting all that I kept hidden from you.
And so concludes the mysterious letter with which Sigmund Brouwer begins Flight of Shadows, the dystopian sequel to Broken Angel, set in the post-apocalyptic, former United States of America, that combines the Handmaid's Tale-esque, cult-like theocracy of Appalachia with the Orwellian caste system of the City-States. Caitlyn Brown, having escaped from Appalachia, struggles to survive as an outcast in the City-State caste system as she searches for answers to questions of her identity and the origin of the horrific secret she holds.