Ada Twist has always been hopelessly curious.
Why are there pointy things stuck to a rose? Why are there hairs growing inside your nose?
In this book, Ada embarks on fact-finding missions and conducts scientific experiments, all in the name of discovery!
When her house fills with a horrific, toe-curling smell, Ada knows it's up to her to find the source. But, this time, her experiments lead to trouble.
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