Whispering Shadows : The 11th Murray Barber P. I. case

Whispering Shadows Case story eleven Murray Barber is a private investigator with a difference. He can hear the dead speak. Along with his late friends, Alistair and Rita, and Jeff, his friend from C.I.D., Murray solves a variety of cases. Where do the riddles lead which lie within sight of King Arthurs castle? And can Murray discover what became of Suzanne Hemmings after a dinner with friends in 1998?