Gert Nygaardshaug (born 1946) is a famous Norwegian writer and author of crime novels, one of the creators of the ecological thriller genre. The novel “The Zoo of Dr. Mengele” (1989) is the first book in the series about Mino, winning readers’ love and critical acclaim. This is a story about the confrontation between a unique fragile world of the Amazonian rainforests and the cruel world of business, where there is no room for feelings or mercy. It features the terrorist group “Mariposa,” which achieved astonishing results thanks to fearlessness, ingenuity, and caution. “Mariposa” operates around the world, leaving at the scene of crimes its calling card—a photograph of a butterfly. The best personnel of world special services have been sent to catch the terrorists. So what is the secret behind “Mariposa’s” invulnerability? And what are its members doing such brutal crimes for?