Mary Higgin’s Clark’s All by Myself, Alone (print and CD) is a classic whodunit in which a glamorous cruise turns deadly.   In The Crow Trap by Ann Cleeves,  Vera Stanhope must piece together the truth about a suspicious suicide. This Grave Hour by Jacqueline Winspear combines  mystery and history as Maise Dobbs investigates the murder of a refugee as Britain teeters on the brink of war.  Cocaine Blues introduces Phryne Fisher, an heiress turned  Aussie crime solver.