
When Harper and her friends discover that their trusty robot, Marvin, has gone missing right before the big competition, the team must unravel the mystery. This action-packed adventure shows a world of teamwork, determination, and a dash of detective work. Will Marvin be found...

With a focus on r-controlled vowels, this mystery will bring readers on a mission to find a missing robot at the local robotics competition. Uncover the clues while strengthening a core phonics skill.