Corona de medianoche (Trono de cristal 2)

Evil crowns the beautiful palace assassin. Guided by duty and torn by love, Celaena Sardothien faces difficult crossroads.

The palace assassin returns, the deadliest weapon in the kingdom of Endovier. Her mission is to collect the blood of King Adarlan's enemies to buy his freedom. But Celaena refuses to meekly accept the macabre orders of the Endovier monarch, whose soul is as dark as a wolf's maw, and secretly becomes a rebel against the crown, risking everything she has come to love: the rebellious princess, the handsome captain of the guard, and the prince.

Maintaining that charade becomes increasingly difficult as Celaena realizes she's not the only one seeking justice. Nevertheless, she remains determined to unravel the mysteries hidden deep within the glass castle. Celaena will be forced to relinquish what she holds most dear and must define once and for all where her loyalties lie, what she is most willing to fight for.