Fionamara is a smuggler. Antal is the reason her people fear the dark. Fi ferries contraband between worlds, stockpiling funds and stolen magic to keep her village self-sufficient - free from the blood sacrifices humans have paid to Antal's immortal species for centuries.

Only legends whispered through the pine forests recall a time when things were different, before one world shattered into many, and the flesh-devouring beasts crept from the cracks between realities, with their sable antlers and slender tails, lethal claws and gleaming fangs. Now, mortal lives are food to pacify their carnivorous overlords, exchanged for feudal protection, and the precious silver energy that fuels everything from transport to weaponry.

When Fi gets planted with a stash of smuggled energy, a long-lost flame recruits her for a reckless heist that escalates into a terrorist bombing - and a coup against the reigning immortals, with Fi's home caught in the crossfire.

She's always known the dangers of her trade - and of the power she's wielded since childhood, allowing her to see the secret doors between dimensions, to walk the Void itself. But nothing could have prepared her for crossing paths with Antal. For the deal she'll have to make with him, a forced partnership to reclaim his city that begins as a desperate bid for survival, only to grow into something far more dangerous.

A revolution. And a temptation - for how sweet the monster's fangs might feel.