The “Soldier of Fortune” tetralogy in one volume. Who are the best soldiers in the Universe? Earthlings! Races unable to kill their own kind resort to the services of mercenaries to protect themselves from invaders. Alexey Medvedev, an ordinary Russian guy, receives a tempting offer - to become a soldier of fortune. But you won’t have to fight with people... From the depths of space-time a cold inhuman gaze looks out, threatening all living things. Forward, mercenary! War is hard and dirty work, but if luck is on your side, the throne of the Emperor may loom ahead. Even if your only son has disappeared into the abyss of space, you must find the strength to fight to the end and win at any cost. Contents: 1. Soldier of fortune2. Prince of Terran3. Heir4. Ruler