The mystery novel “Descent into Hell” is a novel about God, about Jesus Christ, about what His Mission was, why it was not fulfilled and was cut short at the very beginning (since, judging by the Gospels and the Book of the Prophet Daniel, Jesus Christ should not have died a human death), who is the culprit of this Catastrophe, what role the high priests, tetrarchs, Pontius Pilate, Judas Iscariot and one mysterious person who is mentioned in the legends of the Holy Grail played in this; what consequences did this lead to in human history; and also about the Great Feat of Jesus Christ, which He accomplished between His execution and His Resurrection - the descent into hell.