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

Ruby Redfort is one fearless kid, buster. She’s ready to defy death again to capture the ghostly foe that’s stealing from the highest buildings in Twinford. But fearlessness can lead to risk-taking, which can land a person in very serious trouble. Ruby may think she’s invincible, but recklessness always comes before a fall.