Alina Starkov is a mapmaker's assistant in the Ravkan army when she discovers she is a Sun Summoner: a Grisha with the rarest power in the world, one that could destroy the Fold and reunite the kingdom. Brought to the Little Palace to train under the Darkling, the most powerful Grisha alive, she begins to understand that power this rare attracts attention of a particularly dangerous kind. A trilogy about the cost of being extraordinary in a world that wants to use extraordinary people, and about whether the promise of salvation is ever worth the price attached to it.