Synopsis
Walking the streets of Moscow, indistinguishable from the rest of its population, are The Others. Magicians capable of entering the Twilight, a shadowy world that exists in parallel to our own, each owes allegiance either to the Dark, or the Light.

Three years have passed since the events of The Day Watch. Svetlana has left the Night Watch to raise her and Anton's daughter Nadya, now a precocious two-year-old. With mother and daughter spending the summer on a dacha not far from Moscow, Anton is working on uneventfully, dreaming of a holiday, when his boss Gesser asks him in for a private meeting.

Gesser has received an anonymous note, claiming that an Other has revealed the full truth about their kind to a human, and now intends to do the impossible: convert that human into an Other. Even more worryingly, the note has been sent to Day Watch head Zebulon and to the Inquisition's offices in Berne - and only the highest-level mages and sorcerers know the address. So the Inquisition has ordered the Night Watch to cooperate with the Day Watch, as well as with an Investigator from the Inquisition, to unmask the culprit. Anton will be the Night Watch representative, while the Day Watch is sending Kostya Saushkin, once Anton's teenage neighbour and idealistic friend, now a High Vampire and, at the age of twenty, the youngest in Europe.

Installed in the apartment complex to which the sender of the letter has been traced, Anton begins to investigate the residents one by one. Already convinced that a seriously high-ranking Other must be involved, he begins to suspect that it is a Dark Mage who is responsible. Reviewing the dossiers of the building's inhabitants, Anton comes across a familiar - albeit much younger - face, and realises that Gesser must have had a son. Could Gesser be trying to help that son, trying to initiate him as an Other? Anton is now in the unenviable position of suspecting his boss - the very man who has chosen him to investigate the case...