Why does the hippopotamus mourn, and the lion incessantly sobs rhythmically? Whose whimsical voice does the tiger hear? What can be found when looking for pirate treasures? Who has magic ink and what is its power? What is a hare in wolf's skin capable of? How to fix a broken rooster? In what is the way to determine a true friend?.. These and many other questions are very important to the inhabitants of the Amazing Zoo - because each of them is so eager to catch their own Happiness! But where exactly is it hiding? Probably, many children ask their parents such a question. So if you want to help your for a little researcher to understand his own emotions and identify the happiest ones - we suggest going on an interesting journey together with the heroes of this book