Author:
Child, Lauren.
Imprint:Somerville, Mass. : Candlewick, 2012.
Physical Description383 p. ; 20 cm.
Note: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.
