Las fronteras

Humanity's excesses have pushed Earth to its limits. The only way to avoid mass extinction is to depopulate half the planet, to let nature gradually restore the delicate balance of flora, fauna, soil, and climate. In this borderland, during the twenty-four hours of a decisive day, a guard ensures that this transition to the wild takes place peacefully, and he grapples with those who insist on crossing the demarcation line, with an inexplicable theft, and with an enigmatic dream horse that seems to have galloped into wakefulness. In a time that is ending, in a world returning to its origin, what memory, what trace, what message will humankind leave for posterity?