Brightly illustrated book for children 7 - 12 years old tells how the child learns to discover and comprehend the surrounding world through care and love for nature.This is a story about how an avocado seed, growing from a small sprout in a beautiful tree, became for the main character that golden key, which opened up new inner opportunities for him, helped overcome teenage fears, helped to find new friends. The book will be useful for children to gain confidence in themselves and their abilities, as well as will help parents in the issue of child education.