When Little Mouse ventures out of his nest for the very first time he just can't believe his eyes. There are so many incredible sights and sounds! But what is this amazing place, and who is it for? He asks his mother, and so she explains that it's called the World - and it's a place for everyone to share. When Little Mouse ventures out of his nest for the very first time he just can't believe his eyes. There are so many incredible sights and sounds! But what is this amazing place, and who is it for? He asks his mother, and so she explains that it's called the World - and it's a place for everyone to share.