When nineteen-year-old huntress Feyre kills a wolf in the woods, a terrifying creature arrives to demand retribution. Dragged to a treacherous magical land she knows about only from legends, Feyre discovers that her captor is not truly a beast, but one of the lethal, immortal faeries who once ruled her world.

As she adapts to her new home, her feelings for the faerie, Tamlin, transform from icy hostility into a fiery passion that burns through every lie she's been told about the beautiful, dangerous world of the Fae. But something is not right in the faerie lands. An ancient, wicked shadow is growing, and Feyre must find a way to stop it, or doom Tamlin—and his world—forever.

Celaena has survived deadly contests and shattering heartbreak—but at an unspeakable cost. Now, she must travel to a new land to confront her darkest truth… a truth about her heritage that could change her life—and her future—forever.

Meanwhile, brutal and monstrous forces are gathering on the horizon, intent on enslaving her world. Will Celaena find the strength to not only fight her inner demons but to take on the evil that is about to be unleashed?

'A line that should never be crossed is about to be breached. It puts this entire castle in jeopardy—and the life of your friend.'

From the throne of glass rules a king with a fist of iron and a soul as black as pitch. Assassin Celaena Sardothien won a brutal contest to become his Champion. Yet Celaena is far from loyal to the crown. She hides her secret vigilantly; she knows that the man she serves is bent on evil.

Keeping up the deadly charade becomes increasingly difficult when Celaena realizes she is not the only one seeking justice. As she tries to untangle the mysteries buried deep within the glass castle, her closest relationships suffer. It seems no one is above questioning her allegiances—not the Crown Prince Dorian; not Chaol, the Captain of the Guard; not even her best friend, Nehemia, a foreign princess with a rebel heart.

Then one terrible night, the secrets they have all been keeping lead to an unspeakable tragedy. As Celaena's world shatters, she will be forced to give up the very thing most precious to her and decide once and for all where her true loyalties lie... and whom she is ultimately willing to fight for.