Crack open Ruby Redfort’s second adventure — and you will literally be on the edge of your wits. Everyone’s favorite girl detective is back for a second m

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

Got a sixth sense for trouble? Read on, buster. Our favorite girl detective calls on her gut instincts in an exciting grand finale of the Ruby Redfort series. R

Ruby Redfort: Undercover agent, code-cracker and thirteen-year-old genius – there’s nothing average about her. Only this time it’s an adventure in the wil

Originally published: London, England: HarperCollins Children's Books, 2015.