The third volume of the adventure saga “Progressors”. Ice Age autumn, with its rains and cold winds, heralds an even harsher winter, and the Fire Tribe is just getting ready to begin building their main housing. But everything is turned upside down by unexpected guests who show up right on the doorstep. Will the tribal leaders be able to re-educate the outsiders, or will the society they founded fall under the onslaught of multicultural cacophony? But everything that does not kill us makes us stronger, so the Fire Tribe, after each rapid ups and downs, only increases its capabilities in confronting this cruel world...