In this humorous and heartwarming picture book, Mr. Fish refuses to share his tree with Bird and Cat--until he learns that making friends is more rewarding than losing them. Bird and Cat meet in a tree. But someone already lives in this tree--Mr. Fish. And he does not want to share. After Bird and Cat leave, Mr. Fish discovers that it's actually pretty boring to sit in a tree all by yourself. Getting Bird and Cat back--along with Mr. Fish's old friends...