The King Kids and the Missing Pen

About this book

A Science Expo, a helpful robot, and a very important missing pen...Nine-year-old John King has been counting down to the Science Expo. His project? Robo Ren-a robot designed to help around the house. All he needs to finish is his dad's special pen. But when John opens the sleek box where it's kept... it's gone! With the clock ticking, he rallies his siblings for a full-on family investigation. Can they crack the case before the big day?Perfect for fans of Nate the Great, The Magic Treehouse, and the A to Z Mysteries series, this family-friendly mystery is packed with humor, heart, and sibling shenanigans.Books can be read in any order!