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Book, 2013
Current format, Book, 2013, , Available.
Book, 2013
Current format, Book, 2013, , Available. Offered in 0 more formats
Billy spends the summer with his uncle, Professor Will, building a robotic puppy to enter in the Crazy Invention of the Year Competition. Will they take first prize, or will their plans be thwarted by the sneaky Molly and her Aunt Polly?
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