The Clock Strikes Twelve by Patricia Wentworth

At a New Year's Eve celebration hosted by James Paradine he makes an announcement that something has been stolen from him and must be returned to him by midnight. The entire family is in shock at midnight when James is found dead. Miss Silver is called in to find the killer. This is a well written cozy mystery and has a cast of characters that any of them could have been the murderer. ***This book was received in exchange for an honest review.***