The Case of the Disappearing Diamond (Nancy Drew Mysteries Book 80)

Mystery writer Monica Crown hires Nancy to prove her jailed daughter is innocent of a diamond heist. Can Nancy find the real culprit before it's too late? The daughter of mystery writer Beatrice Crown is convicted of stealing six diamonds, but when Beatrice tries to prove Karen had been framed, she disappears, leaving Nancy Drew to solve the puzzle Nancy investigates when a famous mystery author vanishes, her car ends up in a canyon, and her daughter is accused of stealing six diamonds Nancy sets out to locate missing diamonds and a missing mystery writer, and finds plenty of trouble along the way.