Dead Ringer — Michelle Ann Hollstein / M.A. Hollstein

Dead Ringer is book #8 in the An Aggie Underhill Mystery series.  
 
Aggie and her friends have rented a beach house in Oceanside while anxiously awaiting the birth of her granddaughter.  Little did she know that Roger's supposed near death experience of practically choking to death on a golden ring baked into a gluten free donut would land her into so much trouble.  Now it's up to Betty, Aggie's best friend, to put the clues together and play detective in order to dig Aggie out of a dangerous situation.

Will the mystery of the golden ring be solved before Aggie's granddaughter is born? Join Aggie, Betty, and Roger in this comical escapade to find out. 

Ms.  Aggie Underhill Mysteries (In Order)
Deadly Withdrawal
Something's Fishy in Palm Springs
Maid in Heaven
A Hardboiled Murder
One Hell of a Cruise
A Prickly Situation
Vegas or Bust 
Dead Ringer