Seventeen-year-old Kalista guards a dark secret that has never allowed her to fit in. She is a siren.
Instead of luring men to shipwreck, Kalista sucks the very life force from their souls. From day to day she never knows from where her next meal will come, but resists the urge to feed for as long as possible.
Years after his brother’s accident, the mercenary Kefier finds himself chased down by former associates for his friend’s death. Already once branded a murderer, he crosses paths with his friend’s sister, Sume, whose only desire is to see her family through troubled times. In the meantime, the young, arrogant merchant Ylir takes a special interest in Kefier while he himself is entangled in a battle with a powerful mage, one whose name has been long forgotten in legend.