Sergei Vasilyevich Lukyanenko is a Russian science fiction and fantasy author, writing in Russian. His works often feature intense action-packed plots, interwoven with the moral dilemma of keeping one's humanity while being strong. Some of his works have been adapted into film productions, for which he wrote the screenplays.

Night Watch is a fantasy novel by the Russian author Sergei Lukyanenko, the first to feature his fictional world of The Others. The book was first published in Russia by AST in 1998. The story revolves around a confrontation between two opposing supernatural groups : the Night Watch, an organization dedicated to policing the actions of the Dark Others—and the Day Watch, which polices the actions of the Light Others.