In a world where the land shifts and changes like a living thing, maps become useless by dawn. Yet Elian, a disgraced cartographer with a memory that never forgets, possesses a forbidden gift: the ability to chart what should be impossible to map. When a mysterious affliction known as the Stillness begins turning the living landscape to stone, the boundaries between the known world and the unknown begin to collapse. With the land slowly losing its ability to change, Elian must uncover the truth behind the spreading affliction before the world she knows becomes nothing more than a lifeless relic. Her search for the mythical Heart of the World will lead her toward the terrifying void at the planet's center, forcing her to confront the ghosts of her past and question everything she believes about the nature of truth in a world where even the ground beneath her feet cannot be trusted.