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A butterfly mystery. A secret shame. A new challenge that will force Putney to face one of her greatest fears...When Putney finds out she&#8217ll be swimming her worst stroke in the upcoming swim meet, she has to learn the butterfly stroke quick!Fortunately, she has a magic eyePad and hi-tech hummingbird robot to help, plus some help from real butterflies she&#8217 been raising.Unfortunately, a snoop professor from MIT is hot on the trail of the mysterious hummingbird robot. Also, Putney must face her former best friend for the first time in months. Can she find a way to mend that friendship and keep her secret safe?Nancy Drew meets MacGyver in this fun series about friendship, middle school, and the engineering design process.These books are great for kids who loved Rosie Revere, Engineer, The Secret Lake, and Nancy Drew, and are looking for more adventure and real-life projects. Check out https://putneydesigns.com/butterfly-flight/ for the project details from this story!Discover 
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