About the book: year / The Kulemin story continues - the aliens with their mysterious experiments do not leave the Earth alone. No sooner had Felix left for his planet than an alien girl, Lena, was sent in his place, posing as a tourism instructor and going on a hike with the schoolchildren. Of course, Alexey Palych and Borka won’t just leave our children at the mercy of aliens, and go with them on a strange journey with incidents...