Y ou are walking in the woods and hear only rustling and chirping. But invisible eyes are watching you and ears are listen­ ing. No living creatures are to be seen, but they are all here. Why cannot you see them then?You will discover the secret after you read this book and look at the pictures in it.by Ghennadii SnegiryevTranslated from the Russian by Eugene Yankovsky and Illustrated by V. Fedotov