Getting Old Can Kill You — Rita Lakin

Life isn't all sunny in Fort Lauderdale's Lanai Gardens. Returning from a blissful double honeymoon with her sister Evvie, Gladdy Gold announces that she wants her new hubby, Jack, to join her detective agency. But Gladdy's gals say no dice, and soon Ida, Sophie, and Bella are striking out on their own, enrolling in a class to learn how to be real PIs.

But there's more than enough trouble for two detective agencies when sultry Joyce Steiner moves in, reopening an old rivalry with Arlene Simon, whose husband ran off with Joyce fifty-five years earlier. When Joyce is found murdered, Arlene becomes the prime suspect, and Gladdy and her girls will have to band together if they're going to prove that the truth is not just elusive but a real killer.