The distant future...Thomas Brain did not fit in with the city police. Too well prepared, and it is still unknown who he really is - an energetic, proactive barbarian or an HMB agent? To figure it out, the high patrons of the city drug mafia insisted on transferring the upstart to their fiefdoms - that’s where his secret connections would come to light. And here Brain is in a distant seaside outback, in a valley where gangs rule, where Dzungar governors hold power, where in his garrison there is only one subordinate, and he is a drunkard. But it turns out that you can survive here, relying on experience, ingenuity and... a mortar named “Margarita”...