Originally published: Richmond, Victoria : Hardie Grant Egmont, 2016.
Summary:
When the puppy they are dog-sitting falls down a hole in the park, Squishy and her "bonus" sisters, the twins Vee and Jesse, discover a tunnel that leads down to the Yarra River in Melbourne, and a secret: the Zoom Mining company is dumping something (toxic waste?) under the public park--and the three girls resolve to expose the company.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.