The O'Malley Series, written by Dee Henderson, is a bestselling urban fiction Christian novel series that follows the lives of the O'Malley siblings, a group of adopted children who have formed a close-knit family bond. Each book in the series focuses on a different sibling and their journey of faith, love, and overcoming personal challenges. The books explore themes of trust, redemption, and the power of family. With its compelling characters and engaging storytelling, The O'Malley Series has captivated readers and has been praised for its realistic portrayal of Christian values in a modern world.