All the answers as to who Byron Swift really was and why he chose to kill five people are revealed as Martin comes face to face with the true mastermind.

Martin’s investigation leads to a series of revelations that draw him deeper into the scrublands and the secrets of Riversend.

When a witness claims to have seen Mandy dispose of the knife that killed Jasper, Mandy faces murder charges. Martin continues to hunt for the true culprit, uncovering more darkness in Port Silver, but no murderer. Jasper's mother Densie holds a vigil for Jasper at Hummingbird Beach which ends in a mass poisoning, with Mandy one of the victims.

In the wake of the mass poisoning at Hummingbird Beach Retreat with Mandy in a critical condition, Martin reflects on his past actions and reconciles with Uncle Vern. With Vern's encouragement Martin's instincts are restored and he follows a lead that ultimately proves Mandy’s innocence and uncovers the Jasper's killer.