A.P. Koski delivers a gripping young adult fantasy perfect for fans of Coraline, The Maze Runner, Alice in Wonderland, and Ready Player One. Vivid, strange, emotional, and impossible to predict—Lilly and the Ruby Door is a portal fantasy where trauma meets courage, puzzles meet destiny, and one girl discovers that home isn’t always the place you leave… but the place you fight for. Enter the Ruby Door… if you dare. Preleased Reviews “A wildly imaginative, emotionally charged adventure that refuses to let you go.” Lilly and the Ruby Door by A.P. Koski is a brilliant collision of heart, danger, humor, and surreal worldbuilding. Koski blends sci-fi mystery with whimsical fantasy to create a universe that challenges the mind, heart, and courage of the heroine. Lilly is an instantly relatable protagonist—determined, resourceful, and quietly aching for connection—and her journey from a harsh, loveless home into a nightmarishly beautiful world is both thrilling and deeply moving.