The Night Watch Tome 6 (Broché)

The streets of Moscow aren't safe. Vampires are attacking innocent people, and the names of the victims are spelling out a message : Anton Gorodetsky. Higher Light Magician Anton is one of the Others, possessed of magical powers and able to enter the Twilight, a shadowy world parallel to our own. Each Other must swear allegiance to either the Light, or the Dark. Anton's investigation into the attacks leads him to a Prophet, an Other who can foretell the future.
Her horrifying prophecy heralds the end of all life - unless Anton can reunite a mysterious organisation known only as the Sixth Watch, before it's too late.