Last Hours. Book III. Thorn Chain

Cordelia Carstairs has lost everything that was meaningful to her. Her father was killed, she could not become Lucy's parabatai, and her marriage to James Herondale is falling apart. Now the girl is bound by a vow to the demoness Lilith and cannot wield the sword Cortana. Hoping to forget her problems, Cordelia goes to Paris with Matthew Fairchild. But terrible news comes from home: London is threatened by Velial, the Prince of Hell. Cordelia and her friends must save their city. For this, they must cast aside pride and fears and learn to trust each other again. For if they lose, they will lose everything, even their souls.