Iggy Peck & Rosie Revere have earned their places among the most beloved children's characters & have inspired countless kids & adults to follow their passions Determined Ada Twist with her boundless curiosity for science & love of the question Why? is destined to join these two favourites Like her classmates Iggy & Rosie Ada has always been hopelessly curious Why are there pointy things stuck to a rose? Why are there hairs growing inside your nose? She embarks on fact-finding missions & 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