The seventh and last book of the series is an enchanting story about a boy and an emperor penguin. When a big ball of snow separates Seb from the rest of the group, he doesn't know what to do. A special encounter with Popo the penguin will forever change Seb's understanding of GRATITUDE. Learn some great emperor penguin facts, too, and find out how all the characters of the seven books come together to change the world. YOU can change the world!