Hazards of the Game — Norma Tadlock Johnson

Recently widowed Paula Madigan agrees to house-sit for a friend on Puget Sound. Soon, new friends and a fresh perspective find her on the golf course, where to her shock, she discovers the bejeweled hand of a dead woman in the sand trap. The victim, unpopular at the country club, was suspected of sending nasty anonymous notes to other members. But when Paula receives her own ominous note after the murder, it's clear the writer -- perhaps the killer -- is alive and well.

Paula's life becomes even more complicated when the thirteen-year-old granddaughter she's never met visits for the summer. She's a typical teenager whose knack for sleuthing puts her in danger's path. Another murder occurs and Paula, desperate to protect her granddaughter, has to draw on all her detective skills -- before death becomes par for the course.