Ratings1
Average rating3
The Aldens are helping one of Grandfather's friends break a world record by building the world's largest yo-yo! But someone follows them, and then the plans for the yo-yo turn up missing. Someone is trying to sabotage the yo-yo before it's launched!
Reviews with the most likes.
There are no reviews for this book. Add yours and it'll show up right here!
Featured Series
3 primary booksThe Boxcar Children Mysteries is a 3-book series with 3 primary works first released in 1970 with contributions by Gertrude Chandler Warner and Robert Papp.