In the final instalment of the Through the Mirrors tetralogy, Christelle Dabos invites us into the heart of the great game. Ophelia and Thorne have finally found each other, the mistrust between them has been overcome, but the lovers are forced to keep their relationship a strict secret. This is the only way they can continue their search for the mysterious God, whose destructive power continues to swallow whole pieces of the arks along with thousands of innocents. Did God really create this world, or is he just a deceiver? What happened before the arks? Ophelia is at the beginning of an extremely dangerous and even self-destructive journey to find answers to these questions. And she may never be able to return to her old self. Or even just to return...