519 books • 20 series
Bobbsey Twins 00: Dr. Funnybone's Secret GB (Bobbsey Twins (Grosset & Dunlap Paperback), #65)
Bobbsey Twins 00: Smokey Mountain Mystery (Bobbsey Twins (Grosset & Dunlap Hardcover), #70)
Bobbsey Twins 00: Freedom Bell Mystery (Bobbsey Twins (Grosset & Dunlap Hardcover), #69)
The Tag-Along Giraffe (Bobbsey Twins (Grosset & Dunlap Paperback), #15) (Bobbsey Twins (Grosset & Dunlap Hardcover), #66)
Bobbsey Twins 00: Dr. Funnybone's Secret (Bobbsey Twins (Grosset & Dunlap Hardcover), #65)