King & Kayla are back on the case in this laugh-out-loud mystery from the Theodor Seuss Geisel Honor Award-winning series. Kayla lost a tooth. She put it in the special pocket in her tooth fairy pillow and now her tooth is missing! If she can't find it, the tooth fairy won't come. Analytical Kayla retraces her steps, searches everywhere, and questions Mason, who rode home from school with her. Sensitive King wonders why Mason smells like a tooth. Could he have Kayla's lost tooth? Or should King take another look at the tooth fairy pillow? With simple, straightforward language and great verbal and visual humor, the King & Kayla series is perfect for newly independent readers. King and Kayla model excellent problem-solving skills, including working as a team, gathering facts, making lists, and evaluating evidence.