They say that in the north of Russia there is a forest where people never go. Most of it is occupied by a swamp - one wrong step, and there is no salvation for you. There are various rumors about that swamp, but only one is transmitted from mouth to mouth for centuries: if you throw a baby who is not yet three years old into the chomping mud, he will absorb his swamp, but within three days he can return, only now he will no longer be a man, but will become a demigod.