What started with Starling and continued with Descendant has now reached its epic conclusion ... one that will leave readers absolutely breathless.On a terrace high above the streets of Manhattan, Mason Starling holds the fate of the world--and of her love, Fennrys--in her hands. For it has all come down to this. Mason Starling has completed her father's vision and become a Valkyrie--a chooser of the slain and the one who will ultimately bring about the end of the world. But she is determined that what happens next is not what the prophecy foretold, or what her father has planned, or what the fates have already decided. What happens next is up to Mason and Fennrys. And the world had better hope they haven't reached the limits of what their souls and swords can survive.