The traditional Christian doctrine lacks information about the life of Jesus Christ in the age of 13-33. This book, first published at the end of the 19th century gives an unexpected answer. It is based on the Tibetan manuscript found in 1980's and tells that the mystery of the "lost years" of Jesus lies in his travel to Nepal. There, he learned Buddhist teachings and philosophy to complete his world view and later reflect it in his teaching. The book has caused some big waves in its time and the discussions continue even today. Was this possible and real? What was the purpose of such a dangerous journey? The proponents of this theory state that at the time of Jesus Christ, Nepal was a center of the most advanced philosophy – Buddhism. It was natural for a spiritual leader to learn and teach one of the best philosophies of the world.