Fifteen-year-old Maggie Abernathy risked everything to return home and become queen of the witches, but now that she has been crowned, she must embark on a dangerous sea voyage to gain the queen's blessing, one that every queen before her has received. There, Maggie is given a cryptic warning that means nothing to her, but a prickling at the back of her mind tells her it is important.
Shortly after returning home, a stranger approaches Maggie, repeating nearly the same warning. When Maggie insists that the threat be investigated, her advisors convince her that this stranger is insane and that no danger is coming. But Maggie cannot be dissuaded and enlists the help of her fatherly bodyguard, Loravain. Together, they flee the city in hopes that they can uncover the grim truth behind these warnings before it is too late.
As they investigate a small, remote village, they are overtaken by a thick wall of fog that the villagers fear. Against Loravain's protests, Maggie decides to brave the hidden dangers behind the wall and learns that the warnings were right. Danger is coming. One that could destroy them all.
