"First published in Australia by Hardie Grant Egmont 2016." "Picture Window Books are published by Capstone."
Summary:
Squishy and her twin stepsisters, Vee and Jessie, are on the trail of a mystery; it starts with "Boring Lady" working in her office across the street at 2:57 in the morning, continues with the trashing of Mr. Hinkenbushel's apartment next door, and apparently involves illegal diamonds--and Squishy becomes convinced that Mr. Hinkenbushel is the diamond smuggler, only none of the grownups believe her.
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