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Book, 2012
Current format, Book, 2012, 1st U.S. ed, Available .
Book, 2012
Current format, Book, 2012, 1st U.S. ed, Available . Offered in 0 more formats
Thirteen-year-old Ruby, a genius code-cracker and daring detective, gets an anonymous call setting a challenge that leads her to the headquarters of Spectrum, a highly secret anti-crime agency that needs her help to crack a code, but soon Ruby uncovers dastardly plans of the Fool's Gold Gang.
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