Families who loved King & Kayla and the Case of the Secret Code by Dori Hillestad Butler often look for books with a similar feel. These 20 recommendations were selected for their similarity in style, theme, and reading level.

A parent would reach for this book when their child is showing a budding interest in logic puzzles or when they are transitioning from picture books to longer, text-heavy stories. This mystery is perfect for a child who feels a bit overwhelmed by complex plots but loves the idea of being a detective. It follows Kayla and her lovable, slightly distracted dog, King, as they try to crack a secret code left by a friend. The story emphasizes teamwork and the value of looking at problems from different perspectives. By telling half the story through King's eyes, it encourages children to think about what others might see or smell that they missed. It is a gentle, humorous, and highly accessible entry into the mystery genre for kids aged 6 to 9, building confidence in both reading and deductive reasoning.