Ancient fae lore. A castle in ruins. An heir who must survive winter in a den of Wolves.Snowbound in a crumbling castle until spring, Sienna is trapped with the dark, brooding Wolf who betrayed her. She knows he's hiding something, and she's determined to uncover it. But the more she learns about him, the harder it is to deny the pull between them-one that could ruin them [...] only thing more unsettling than the Dead Queen and her mysterious Wolf is the ghost that visits Sienna in the night. It lures her into forbidden dungeons and shadowed corners of the castle, where fae with dark appetites wait to claim her. Sienna can't tell if the wraith is trying to warn her about the castle's secrets or lead her to her [...] an unexpected visitor washes up on the frozen shore, he brings a warning that turns her blood to ice: the Fox King is coming. Sienna knows her father will stop at nothing to see her dead and the succession secured for his illegitimate son. Her power is volatile, but if she can master it, she won't just defend this cursed castle, she'll kill the Fox King and take his throne for [...] copper-clad soldiers and a bloodthirsty king march north, whispers stir in the frost-of broken bargains, ravenous monsters, and ancient fae kings and queens who have slumbered for thousands of [...] ghost knows [...] Wolf won't [...] the ancient fae are done hiding.