Seer - The Broken Seal, #6

Bodies lay strewn on the Throne Room floor. Blood pools on black marble. Seeping down through the merest cracks, one fatal drop touches the Sacred Seal. A hole in the fabric of time opens. The demon's horde waits on the other side. It is the Seer's vision and her visions are never wrong. Carryn Adaeryn fears she can't stop this horror from coming true. It is her brother, mocking her, telling her she will fail at every turn.
And she is terrified Maralt is right. Every tenet she holds close will be tested. Every truth is bent. The souls of the lost and the living can survive only if she doesn't fail. When the rules change, nothing is certain. Action and reaction determine Carryn's choices and alter the course of time. The massacre is nearly complete. The battle for survival goes on. One rule remains... It isn't so easy to kill a telepath.
Or contain him. Unrelenting fear and steely determination define the 6th book in the Broken Seal series. Who wins, who loses, and who may switch sides drives this page-turner onward. Seer takes you one step closer to the gripping conclusion of this epic saga.