When a series of suicides, linked to the Wellness Spirit Centre, turn out to be murder, it brings together DCI Whitney Walker and forensic psychologist Dr Georgina Cavendish for another investigation. But as they delve deeper, they come across a tangle of secrets and the very real risk that the killer will strike again.  As the clock ticks down, the only way forward is to infiltrate the centre. But the outcome is disastrous, in more ways than one.  For fans of Angela Marsons, Rachel Abbott and M A Comley, Lethal Secret is the fourth book in the Cavendish & Walker crime fiction series.  Includes a special bonus note from the author.