Well, perhaps someone was under the influence of drugs in the woods and then became the target of a stalker. It could be that the drugs made them more vulnerable or disoriented, attracting unwanted attention. Maybe they were lost in the woods while high and that's when the stalker noticed them.
Hard to say. Sometimes stories like this are a blend of real experiences and creative imagination. You might need to research the background of the book or its author to find out for sure.
Yes, 'The Reef Stalked' is based on a true story. It often draws from real - life events that occurred in relation to the reef environment, perhaps events involving the unique ecosystem, the creatures within it, and the various threats they face.