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Twins uncover a spy in their midst using homemade gadgets.
Twins use DIY gadgets to solve a neighborhood mystery after their parents vanish.
Twins uncover a spy in their midst using homemade gadgets.
Twins build robots to outsmart a criminal mastermind in a race against time.
Twins must stop sabotaged robots at a science museum using a DIY gadget glove.
Kid inventors race to save their parents from a criminal mastermind using solar gadgets.
Kid inventors must stop a movie sabotage with homemade gadgets.
6
Authored
0
Illustrated
1
Collaborators
Chapter books
6
Books published each year, stacked by book type.
The share of the catalog represented by each book type.
6
books
Every title in the Bookroo library, ordered from newest to oldest.
Twins uncover a spy in their midst using homemade gadgets.
Twins must stop sabotaged robots at a science museum using a DIY gadget glove.
Twins build robots to outsmart a criminal mastermind in a race against time.
Kid inventors race to save their parents from a criminal mastermind using solar gadgets.
Kid inventors must stop a movie sabotage with homemade gadgets.
Twins use DIY gadgets to solve a neighborhood mystery after their parents vanish.
Creative company
The authors and illustrators who share the credits across Bob Pflugfelder's books.