The fourth title in the series starring supercool secret agent, code-cracker and 13-year-old genius Ruby Redfort.
Ages: 9+..
How do you set your sights on catching a light-fingered villain if you can\'t even see him...? Now in paperback.
This time Ruby must pit her wits against a seemingly invisible foe.
The fourth title in the series starring supercool secret agent, code-cracker and 13-year-old genius Ruby Redfort