Murder Swings the Tide — Linda Robertson

Maggie Stewart, an interior designer, hopes for a relaxing vacation on Seaward Island. Instead, she discovers the battered body of a teenager floating in the marsh. She has to find the murderer before she becomes the next victim on this lush island paradise. Who among the colorful characters she meets on the island is the killer: the handsome man who says he wants to protect her, the sinister sheriff, the ambitious owner of a local bar, an artistic neighbor, or someone else--someone she never suspects until it is too late?