When there are mysteries to be solved, the Red Blazer Girls are on the case! The discovery of the Ring of Rocamadour has secured the girls' reputation as Upper East Side super-sleuths, bringing many sundry job requests (no mystery too small, right?) and some unwanted attention from crooks. This time the girls must follow a trail of cryptic clues, involving everything from logic to literature, to trace a rare violin gone missing. But nothing is as it appears, and just as a solution seems imminent, the girls find themselves scrambling to save the man who was once their prime suspect.