Galanta is only one step away from successfully releasing Santanas. The faeries must either stop her or hope that their allies stand strong in the coming storm. While they seek her out, they are forced to cement old allegiances and create new ones.

With this in mind, Orion offers himself as a groom to the treacherous night faeries, asking only that Aethan go in his stead to choose his bride. Meanwhile, Galanta's spell means that while Izzy now remembers Aethan, he has no memory of her.

As Aethan, Izzy, and Wilfred travel to the realm of the night faeries to bring home Orion's bride, they are pursued by goblins and hunted by giants. To make matters worse, Santanas's strengthening power means that terrifying monsters are unleashed against them. They will need all their strength and cunning to make it safely home and to stop Galanta from releasing a mad War Faery upon the world.