About the book: 1916 / Everyone has long known and loved the works of the wonderful writer Nikolai Ivanovich Sladkov. There is no need to introduce the textbook stories from the series “Forest Hidden Places”: they are “taught” in elementary school. Our book will give children and adults a unique opportunity - to read them with comments from a modern biologist, find answers to the most frequently asked questions and take a fresh look at the natural world around us! For primary school age.