Hidden Beneath by Barbara Ross

Serving up mouthwatering shellfish, the Snowden Family Clambake has become a beloved institution in Busman’s Harbor, Maine. But when new clues rise to the surface five years after the disappearance of Julia Snowden’ s mother’s friend, the family business shifts to sleuthing . . .

Julia and her mother, Jacqueline, have come to the exclusive summer colony of Chipmunk Island to attend a memorial service for Jacqueline’s old friend Ginny, who’s been officially declared dead half a decade after she went out for her daily swim in the harbor and was never seen again. But something seems fishy at the service—especially with the ladies of the Wednesday Club. As Julia and Jacqueline begin looking into Ginny’s cold case, a present-day murder stirs the pot, and mother and daughter must dive into the deep end to get to the bottom of both mysteries . . .