Ten years ago, Misteris—a floating city-principality inhabited by mages—was founded. Anyone who possesses the Gift can climb the Heavenly Staircase and become one of its residents. For ten years, the Council of Princes has been trying to uncover the power behind the mysterious rulers of Misteris. The agents fail to obtain valuable information; the city flourishes and its influence only grows. The princes are forced to accept this, because there’s no way to oppose the mages. But Misteris isn’t as invulnerable as it seems: the reward for information about it lures adventurers in, and the fragile truce can be broken at any moment—one spark is enough to start a fire. Meanwhile, the shadows, skillfully hidden, continue to move unnoticed.