There is a city in the world where the concentration of positive energy reaches enormous significance, thanks to its amazing layout and location. Higher powers placed in the center of the city a symbol of the victory of Good over Evil - the “Golden Wreath”, but people have lost it - the world is in danger of destruction. Two friends, ninth-graders Dima Tomin and Andrei Doroshenko, overcoming incredible difficulties, travel through time and return the wreath to people. The guys find themselves in another dimension, participate in the real Battle of Poltava, meet Russian Emperor Nicholas II at the celebration of the 200th anniversary of the battle, find themselves in the garden of poetry and at the Sabbath of evil spirits in Dikanka. The book takes place in Poltava in 2009, 1709, 1909, 1959, in the distant future, and in heavenly Poltava.