How Can Bertyl Fit In? Bertyl is a charming adventure story written in rhyme about a sweet little turtle searching for his identity. When Bertyl is born he becomes a beloved surprise to his family. But Bertyl wonders why he is different and doesn't look like other turtles. Beryl's loving family and wise friends help him understand that "We all fit in and we all belong". This charming, wise tale reassures readers that we're each exactly right, just the way we are.