The case of the invisible dog

The McGurk Organization's four young detectives match wits with a nine-year-old scientific genius to unravel the mystery of the "invisible dog.".

Macmillan
1977
9780027438307
book

Holdings

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200669155876002455135183208980GRLS241GRLS001490FIC HIL100015825759371742569409
224752257982901276135183208980LIS287T0004619Fic/Hil100016100282491610028249
224752357982901276135183208980LIS287T0004620Fic/Hil100016100282491610028249