Gus is the star of the reptile house. He enjoys putting on a show for visitors, and no one adores seeing Gus more than Edward. They don't just share a bond; they share a birthday. So, Edward decides to become a zookeeper, looking after all of the reptiles, but especially Gus. Over the years, they spend every birthday together, but one day Edward doesn't show up for their shared celebration. Naturally, Gus decides to leave the zoo and find him. Don't worry, readers. Edward is okay, and Gus is determined to make sure he stays that way. Birthday buddies and true friends stick together.