Author A.G. Howard launches a dark new YA fantasy series about a girl whose family is cursed by Halloween Phoenix “Nix” Loring knows her family is under a Halloween curse. When she was three, her parents tragically died on October 31st. Eleven years later, her twin sister Lark suffered a similar fate. Ever since, Nix has battled survivor guilt. She can't even find comfort in Clarey, Lark's boyfriend and the one person who understands her pain, because Nix's hidden feelings for him go far beyond friendship. All that remains are her sketches, where she finds solace among the goblins and faeries in her imaginary world of Mystiquel. When her depression starts affecting her ability to see color, Nix all but gives up on her art, until her uncle goes missing on Halloween day. Hot on his trail, Nix and Clarey step through a portal, becoming trapped inside a decaying version of their town filled with Nix's own sketches come to life. As Nix and Clarey search for her uncle within the sinister and dangerous world of Mystiquel, Nix discovers there's more to her family curse and otherworldly artwork than she ever imagined-and unless she can solve the Goblin King's maze before the clock strikes midnight, her life won't be the only one the curse claims next.

New York Times bestselling author A.G. Howard concludes her dark, compelling YA fantasy series about twins separated by a family curse. Nix Loring stepped into Mystiquel to face the Goblin King and break her family’s curse. When she found her twin, Lark, held captive for three years and forced to power the magical realm with her imagination, Nix offered herself up in her sister’s place. Now, Nix wants nothing more than to be home with the people she loves. Instead, she's tasked to create beauty from a world fallen to desolation. She finds herself drawn to the faerie creatures under her care—and even reluctantly drawn to the Goblin King himself. But how can she rebuild the very realm that tore her family apart? Back home, her uncle and boyfriend desperately plan a rescue. But Lark, having learned Nix was meant to be the Goblin King’s captive in the first place, resents how her twin stole everything belonging to her during her absence. Worse yet, Lark harbors an unspeakable secret that could destroy what little she has left. As time draws closer to the rescue, Lark grapples with the darkness growing inside: should she help save her sister, or finally get her revenge? Set in a gritty, atmospheric world filled with magical creatures, New York Times bestselling author A.G. Howard concludes her thrilling fantasy duology full of romance, twists, and betrayals.