A world in which life has practically improved is faced with a new problem. Having driven out the terraformers, people colonized the planet Hades. But having received a new planet, the Earth had to pay a high price for it. The payment has been taking place for more than five hundred years, from the very moment when the Invictus penetrated the Earth. And people for the first time were faced with the fact that the high walls of the citadels could not stop the enemy. The mortal enemy penetrated behind the wall, where he easily mixed with the population. And the solution to the problem that arose fell entirely on the shoulders of the Control Service. Only she was able to slow down the growth of this tumor. But there was no talk of stopping the Invictus, let alone victory. And then the Control Service created “operators.”