Biggest disappointment was the ending. Too quick, deserved better of the preceeding 90% of story.
Hilda fatally savaged by a feral dog?
A character dedicated to tick eradication, however an animal strong enough to dispose of a human would have to be in the wild for a substantial period. This also implies major tick infestation and therefore certain death, or at least a state of unhealthines that wouldn't allow it overpower a human; elderly or not.
Nevertheless, a good debut by author.
Could really identify with description of Northern NSW River region. Both physical geography, flora and fauna and also the people of region.