The Metaphysical Detective By Kirsten Weiss - Goddess Fish Promotions Midlife Magic and Murder... and a Dog Named Dog. When Riga Hayworth finds her new client dead, she smells a setup of metaphysical proportions. Now, to find a killer, Riga must travel from San Francisco to the underworld of Greek mythology... and make it back alive. Donovan, Vinnie, Pen and Brigitte – the story that started it all. The Metaphysical Detective is the prequel to the Riga Hayworth series. If you like Gen-X, no-nonsense heroines and supernatural with your mystery, you’ll love The Metaphysical Detective.