In this concluding lecture, Dr Ordway reviews the concepts of naturalism and theism, and provides more reasons why it is rational to believe that theism, rather than naturalism, is true. (A teaser: mystery novels point to the existence of God -- and not in the way you might expect!) She concludes by reflecting on some of the negative consequences of naturalism as a worldview. Bad consequences do not themselves disprove naturalism, but they give a compelling reason why we should ask tough questions about naturalism rather than just accepting it without question. The truth matters.