What to do when the world around you is dying? To return home. That’s what Andrei Cruz, abandoned by fate to the tropics, decided. A soldier of fortune, he wandered the planet for many years, selling his ability to shoot and survive. Humanity killed itself. Long considered completely harmless, the “drug of happiness” available to everyone suddenly turned into a deadly infection. Billions died, the few remaining were at each other's throats. The disease that spared adults sprouted in children. The law of the pack rose above the law of reason, the wolves came to cities overgrown with grass and sat down by human fires. Cruz did not know why he lived, but one day he understood why he did not want to die. He went home bringing salvation. Will he be able to get there?