Cast of Criminals is the 97th novel in the Hardy Boys Series and no. 48 in the Mystery Digest Series and was written by Franklin W. Dixon.
Plot summary
The action in this novel takes place in and around Bayport, New York and New York City. Frank and Joe are called upon to assist the Bayport Players in a production revival of a famous play, Homecoming Nightmare. The lead actress is Frank's girlfriend Callie Shaw. But the production is seriously threatened when someone in the cast decides they want Callie's part- and will do anything to get it.
A tiara Callie purchases for the play is missing. She has received threats and pleads with Frank and Joe to stop the prankster before opening night. The Boys take on the case, but little do they know that the troublemaker is right in their midst.