Those Who Went Before. The Helvensgate Sagas, #1

The Lady in White and the Hunter of Night is Helvensgate's most beloved children's tale. It tells of two lovers, blessed by magic, whose quest ended with them sleeping for centuries, hand in hand, until they can be together once more. All of it is wrong. A thousand years ago, Adecca was sent away to serve the spirits of the dead; Mikael was exiled after being cursed by the Wood. They were each other's best and only friends-or so Adecca thought-until, with one unexpected kiss, Mikael enchanted them both with eternal sleep.
Now Adecca has awakened, and the world is nothing like she remembers. The empire's machines move of their own volition, a man-eating forest is growing into the city, and conflicts between the empress and the engineering guilds are spiraling out of control. Still, Adecca could have everything she ever wanted-a home among people, actual friends!-and all she must do is ignore the supernatural mysteries writhing beneath Helvensgate and pretend she is madly in love with Mikael.
Clearly something must be sacrificed for this world to be at peace. But does it always have to be her?