Time is running out for Lily and Silas Blackwood. Pandora's Box is lost, and the monsters of Nightfall Gardens are gathering for war. If the siblings fail to destroy the artifact, the ancient curse tied to their bloodline will spill into the world and unleash a darkness that cannot be undone. As the Gardens erupt with vengeful spirits and fairy-tale nightmares, Lily must enter the Labyrinth, a shifting maze haunted by dying gods and long-buried secrets. Every turn brings new dangers. Every choice carries a cost. And the truth waiting at the center threatens to shatter everything she believes. Silas faces trials of his own as allies are tested and sacrifices mount. Together, the two must confront the horrors that destroyed generations before them and end the curse once and for all. The Labyrinth is a fierce, atmospheric, and unforgettable conclusion to the Nightfall Gardens trilogy.