the New Bobbsey Twins
29 primary works
Book 21
Book 22
Book 23
Book 24
Book 25
Book 26
Book 27
Book 29
Book 30
In order to raise money for a new bike, Freddie sells cookies made from his grandmother's special recipe until the recipe turns up missing.
While playing in his lab, the Bobbseys overhear Professor Osgood say that his mice have escaped and that his monster mouse may have fallen into the wrong hands.