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Book, 2018
Current format, Book, 2018, , Available .
Book, 2018
Current format, Book, 2018, , Available . Offered in 0 more formats
When Jack and his genius foster siblings, Ava and Matt, discover inventor Hank Witherspoon is missing, they travel deep into the Amazon jungle, overcoming strange creatures, a raging river, and some very clever foes to find their friend and protect his big idea.
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