The stories told in this novel are by no means invented by the author. And the most complex operation to suppress the supply of weapons to underground fighters against the tsarist regime, carried out in St. Petersburg immediately after the assassination of Alexander II, and the mysterious “Hull Incident” with the Russian fleet in the North Sea during the Russo-Japanese War, and other stories - all this is reliable historical material. To tell about them in detail and without embellishment, without inventing anything, will result in an ideal adventure-historical novel. Why? Yes, because in all these stories, members of His Majesty's secret police played a key role.