Into the Darkness (Russian: Во мрак) is a novel that is part of the Universe of Metro 2033, a long-running series of short stories, novellas and novels written by different authors, all set in the world of Metro. Into the Darkness, written by Russian author Andrey Dyakov, was originally published in July of 2011. Although there is currently no English version of the book, Into the Darkness has been translated into a number of other European languages. The novel was translated into Polish by Paweł Podmiotko, whilst Tamás Kisbali worked on the Hungarian translation.
The book is a direct sequel to Towards the Light and the second chapter of Andrey Dyakov's trilogy, followed by the third and last book Beyond the Horizon. Just like its predecessor, Into the Darkness is set in St. Petersburg. It has been promoted as a more mature, artful and serious tale than the first novel.
The novel features the same surviving protagonists from the previous story and takes place after the events of Towards the Light. As witnessed by the crew of the "Babel" offshore oil platform, inhabitants of the Moshchny Island perish in the fires of a nuclear explosion. Questions arise as to who and for what reasons would strike the peaceful society of the island, annihilating any hope of a brighter future for the few survivors of the Catastrophe.
Dwellers of the St. Petersburg metro are accused of committing this atrocity. The "Babel" oil rig crew send them an ultimatum: the individuals responsible for the bombing are to be found within a week, otherwise all tenants of the subway will face a fate similarly deadly to that of the Moshchny citizens. The investigation becomes Taran's responsibility, but the situation becomes even more complicated by the sudden disappearance of Gleb, his foster-son. Questions multiply, but the path to the truth is a difficult one for it lies in darkness - at the very bottom of the human soul.