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?
| ISBN: | 9780807507353 |
| Publication date: | 3rd April 2018 |
| Author: | Gertrude Chandler Warner |
| Publisher: | Albert Whitman & Company |
| Format: | Paperback |
| Pagination: | 128 pages |
| Series: | The Boxcar Children Mysteries |