One Dark Window (Deluxe Limited Hardcover Edition) (The Shepherd King, 1)

Elspeth Spindle lives in an eerie, mist-locked kingdom and keeps company with an ancient, mercurial spirit she calls the Nightmare. The Nightmare is trapped in her head, protects her, and holds the secrets she cannot share, but its influence grows and costs increase with every use of its power. After Elspeth meets a mysterious highwayman on a forest road, she is drawn into a dangerous quest to cure the kingdom of a spreading dark magic. The highwayman is the King’s nephew and Captain of the Destriers, accused of high treason, and together they must gather twelve Providence Cards by Solstice while the Nightmare increasingly threatens Elspeth’s mind.