Vengeance of Dragons

From the front flap of the Gollancz HB edition: "The young diplomat Kait Galweigh and the megalomaniacal Crispin Sabir are both fugitives, in search of the ancient artifact known as the Mirror of Souls. Kait believes the Mirror's magic will restore to life her lost kin, massacred by Sabir necromancy; Crispin believes the magical object will make him a god. Both are terribly wrong. For the mirror contains the captive spirits of the Dragons, long-dead sorcerers who once conquered the world with their arcane magic. The Secret Texts have foretold that, after a millennium waiting for revenge, the Dragons will be released. But the Dragons have also read the Secret Texts... and have spent a millennium ensuring they can control which prophecies do - and do not - come true."