The Giant Yo Yo Mystery
About this book
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!
Subjects
- brothers and sisters
- brothers and sisters, fiction
- children's fiction
- collectionid:boxcar4
- fiction
- juvenile fiction
- mystery and detective stories
- orphans
- orphans, fiction
- series:boxcarchildren
- world records
- yo-yos