The action of this book is partially set in the world described in the cycles' Negator'and' Spotted Dragon '. Since the authors cannot expect that all readers are familiar with the world and heroes of these cycles, we had to enter a prologue that gives a brief description of them. In this sense, it is needed only to refresh the memory and unobtrusive reminder of some features of the system of values ​ ​ of thinking adopted in the states of this world.