A Science Expo, Robo Ren, and a missing pen. It’s Science Expo time and 9-year-old John King is thrilled. He’s been waiting for this event his whole life. His project? Robo Ren - a robot that helps out around the house. To finish his presentation board he needs his Dad’s special pen. When he goes to get the pen from the sleek box it’s stored in, he is shocked to find it missing. John immediately enlists the help of his siblings in finding the missing pen, but will they find it in time? The King Kids Series is full of fun family moments, funny and real sibling interactions, and problems to be solved. Books can be read in any order!