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

"Sardonic narration will grab readers from the get-go, and puzzles laced throughout will intrigue those who share Ruby’s passion for solving mysteries." — P

"Sardonic narration will grab readers from the get-go, and puzzles laced throughout will intrigue those who share Ruby’s passion for solving mysteries." — P

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

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