About the title
Once, Nightingale the Robber, resorting to cunning, defeated the great Ilya Muromets and claimed his feats and glory as his own. With the help of a mysterious elixir of immortality, he has survived to this day and now intends to resurrect the dark god Veles, to whom he once sold his soul. The only ones who know of this plan are the family of Professor Kiselev. This brave scientist finds Muromets in an icy cave in the north, where the decisive battle between the bogatyr and the robber once took place....