Robert Wolf, a 66-year-old Ph.D., after retiring, was inspecting a house he was planning to buy when suddenly a window into another Universe opened in the closet and a young man who called himself Kickaha threw him an unusual horn. That same night, obeying an unexpectedly made decision, Wolf went through the same window to another world with the help of a horn. This decision was far from accidental...

After some time of a serene life on the shores of Okeanos, he turned into a strong 25-year-old man. But this amazing world, which is essentially one huge multi-tiered mountain, did not allow our hero to idle for long. Circumstances forced him to leave the coast and go on a long and deadly journey to the top of this world. There, where, according to his companions, the Lord himself, the creator of this Universe, lives in an impregnable castle.