Since I don't know the exact 'one wrong turn novel', it might also be a mystery or thriller. The wrong turn could be a wrong move in an investigation or a wrong step that leads the protagonist closer to the antagonist. It could be about how this one wrong turn makes the situation more complex and difficult to solve, with twists and turns in the plot as the character tries to correct the mistake or deal with the situation it has created.
The 'one wrong turn novel' could potentially revolve around a journey or a path in life. Maybe the main character makes one wrong turn while traveling, either literally on a road or metaphorically in their life plan. This wrong turn then sets off a chain of events that the story is centered around. It could be an adventure story where this wrong turn leads them into uncharted and dangerous territories, both physically and emotionally.