Ruby Redfort Feel the Fear: 4 - Hardcover

Fans will happily greet the usual cast of marvelous supporting characters and rejoice at Ruby's return.
--Booklist Online

Ruby Redfort is a 13-year-old undercover agent, genius code-cracker, and brilliant detective who works for Spectrum, a secret crime-busting organization...Actual puzzles and codes created by a noted mathematician make this novel a good choice for older STEM collections and teaching units. Notes on Braille, Parkour, and the ability to move around one's environment without limitations are an added touch and help create a story of great interest for boys and girls!
--School Library Connection

How do you catch a thief who isn’t there? Ruby discovers the perils of throwing caution to the wind as she embarks on her fourth adventure.

Ruby Redfort has a lot of reasons to feel confident. Undercover agent, code cracker, thirteen-year-old genius — she’s one fearless kid, buster. Unmasking an evil villain? Done. Honing her parkour skills by climbing skyscrapers and leaping across roofs? All in a day’s work. Heeding the warning signs? Well, not so much. When a ghostly foe begins stealing from the highest buildings in Twinford, Ruby Redfort is ready to defy death one more time to capture the bandit. But fearlessness can lead to taking risks, which can land a person in very serious trouble. While Ruby may think she’s invincible, there’s truth to the saying that recklessness always comes before a fall.