When war is a game and reality is the prey, the only sin is to lose.Boria is on its knees. An undefeated army from the East is sweeping through the kingdoms, led by tactics that seem inhuman. At the heart of the desperate resistance is General Mateus Grover, a Sweeper - a warrior forged in battle, whose name strikes fear into the hearts of his enemies. But his greatest battle is not on the field.Surrounded by aristocratic arrogance, church dogma, and generals who value tradition more than the lives of their own soldiers, the Sweeper must wage a war on two fronts - against the enemy without and the treachery within.But the truth is far more horrifying than anyone can imagine.When a mysterious fugitive from the enemy camp - a prince with an icy gaze and lethal skills - crosses his path, and the silent assassins of the Shadowy Order uncover a sinister secret, the rules of war change forever.The invaders are not mere soldiers. They are tourists. People from another world - our world - who paid a fortune to participate in the most exclusive "monster safari." For them, Boria is not a land to conquer, but a reality for their amusement, and its inhabitants are merely characters in someone else's game.Armed with technology that seems like magic, they do not simply kill. They assimilate. With a mysterious elixir that reprograms the mind, they turn people into puppets, opening the door to the complete erasure of free will.The Prince from the East is the fourth, most dynamic, and shocking book in the Boria series. Military science fiction collides with political thriller and hard science fiction in an epic story of honor, betrayal, and the battle for the very essence of reality.Can a general win a war when his allies are more dangerous than his foes?How do you fight an enemy who can steal your very soul?And what happens when the heroes realize they are nothing more than entertainment?Immerse yourself in a world where every battle is a wager, and the price of defeat is reality itself.