This book tells a true story about two male penguins ,Roy and Silo, who were given an egg and they hatched & raised a baby girl penguin Tango. I read this to Kaito who liked the story & pictures. He thought it's silly that the pair tried to hatch a rock when they could steal an egg. He was pleased when zookeeper gave to the couple the egg to hatch. After finishing the story, we had nice chat about family and that if you really wish for something it's not impossible.