Camille has inherited a tremendous gift--the power to imaginate, the ability to manifest things by creating a mental image of them. The battle against the evil Ts'liches has intensified and Ewilan may be the Empire's last hope. She's joined on her quest by her best friend Salim, Edwin the master of arms, the colossal Bjorn and Maniel, the old Master Duom, and their newest recruit--Ellana, the astonishing Shadowalker. Their first objective is to awaken the Sentinels, but to do that, Master Duom sends Camille back to the human world to locate the person who can best do the job--her brother Akiro! But the Ts'liches uncover her plan and send a Chaos mercenary to kill them both! Pierre Bottero has created a startlingly coherent imaginary universe that recalls the worlds of J. R. R. Tolkein, C. S. Lewis, and Philip Pullman.