ربات باج‌خواه (جلد ۱۴۷) (معماهای بچه‌های واگن)

Henry and Jessie have signed up to be in a robotics competition with a team from school. But someone from another team isnt playing by the rules. Can the Aldens use their sleuthing skills and what theyve learned about technology to find the culprit and save the day? Henry and Jessie's middle school robotics team is going to the regional competition! But it seems like someone doesn't want their team to compete. Can the Aldens use their sleuthing skills and what they've learned about robotics to find the culprit and save the day? Jessie and Henry's robotics team is competing in a big tournament. But when their robot is stolen, the Aldens have a high-tech mystery to decode!