Andriy Kokotyukha (born in 1970 in Nizhyn, Chernihiv Oblast) is a modern Ukrainian writer, screenwriter, and journalist. The author of more than 60 fiction, documentary and non-fiction books. For several years in a row, he is among the top 10 authors whose works are the best sellers in Ukraine, for which he was awarded the title of "Golden Writer" (2012). Andriy Kokotyukha also writes wonderful children's books.This edition includes two stories about the adventures of Maksym Bilan and Denys Chernenko - "Collection of Reptiles" and "Group of Iron Order".Friends are resting in a village in the Poltava Region, and everything would have been normal if Maksym had not suddenly seen some kind of scary place in the water. It is clear that the young detective could not help but be moved by this fact and begin to look for the reason for the appearance of reptiles in their river.But it turns out that reptilian reptiles are much safer than human reptiles. Both boys have to show great courage and intelligence, because their opponent this time is an extremely dangerous and intelligent man named Anatoliy Gromovets, who also has influential friends.And what a surprise it was for Maxim and Denis, when this Gromovets, nicknamed Plazun, becomes the director of the school where young detectives study...