Murder Has No Calories - Corinne Holt Sawyer

When a beautiful staff member at a luxurious California boot camp is found brutally murdered, the owner pleads with the plucky senior sleuths, Angela Benbow and Caledonia Wingate, to investigate. Angela and Caledonia quickly join the party at The Time-Out Inn to check out their fellow guests: nice ladies on the surface, but beneath one of those mud-packs lurks a killer. And it's too bad that Angela and Caledonia’s impulsive detective work is pushing them towards a fate far worse than aerobics. Namely, death...