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Science fair sabotage

Warner, Gertrude Chandler
Jessie wants her science fair project to make a difference. So when she gets the chance to test a local creek for pollution, she can’t wait to get started. But when things start going wrong with her experiment, Jessie and her siblings don’t just have an experiment to investigate, they have a mystery to solve!


Gertrude Chandler Warner.

On compact discs.

Narrated by Aimee Lilly.
Target Readership: