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Book, 2017
Current format, Book, 2017, First edition., Available .
Book, 2017
Current format, Book, 2017, First edition., Available . Offered in 0 more formats
Alice Jones enjoys solving math problems and little mysteries for her classmates, but now one of them has asked her to figure out how a scientist who was working on invisibility disappeared from his locked lab--and solving this problem could actually lead Alice into real danger, because someone does not want him found.
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