2 books · Ages 4–8 · Chapter Books
King & Kayla is a 2-book series for ages 4–8 by Dori Hillestad Butler. Each book stands alone — start anywhere.
Start anywhere — each book stands alone.
That said, King & Kayla and the Case of the Mysterious Mouse and King & Kayla and the Case of the Escape Artist are great first picks.
No particular order needed — browse and pick what catches your eye.