Daniele Incalcaterra has been involved for years now in an apparently impossible task: give back to the native Guaraní Ñandevas 5,000 hectars of Paraguayan forest, which he inherited from his father. His dream is to turn this land into a natural reserve with a scientic observatory to be run toghether with the natives: he named it Arcadia and it became the place of his personal utopia. Incalcaterra’s opponents are many and powerful: mostly big landowners who are turning forest into transgenic soybean elds. Arcadia’s allies front has scattered: the Ñandevas lost faith in judicial action and are now ready to occupy Arcadia with a dozen families. By doing so they would take a major hazard which could unleash a violent reaction by the landowners. Campaign nancing also carries a tricky moral dilemma: the only substantial resource to support Arcadia seems to be carbon credits sale, but this way it would end up in being nanced by the very people who are being fought. The situation is close to a deadlock, Arcadia is under siege, Incalcaterra’s actions lead to unforeseeable reactions: this general uncertainty seems brought forth by a thriller writer.