The book "Pippin in the South Sea" by Astrid Lindgren

Little Ronja's life began gloriously and continued in the same way. Both in Matisse's fortress and in the forest, he explored nature, met strange creatures of the forest, discovered the laws of life, often rebelling and rebelling against them. He goes against his own father to protect his friend and his ideas. Growing up in nature, Ronja recognizes the right of all creatures of the animal world and people to equally enjoy the benefits of nature and takes responsibility for preserving nature in its original form.