Winner of Two Firebird Book Awards 2023 in the Novella and Crime categories. Much to Greg Geldard's amusement, his friends Ben and Paula embark on a river cruise for their 2nd honeymoon. Relaxation and luxury are guaranteed; and evil in an unexpected place. Set on a luxury river cruise on the Rhine, the story evokes the grand old age of murder mysteries, with a modern twist. Ben and Paula find themselves dealing with a range of issues including coercive control and vulnerable adults. But how to tell who is vulnerable?