Modern science threatens human freedom. If everything is determined, how are we in control of our actions? (And if our actions result from quantum indeterminacy, is that any better?) I wouldn’t have believed that there’s anything new to say about this old chestnut, but Ismael has managed it. She doesn’t deny modern science but instead shows us how to understand it better. By appealing to contemporary theories of causation, she puts determinism in its place and shows how human agents can be real masters of their own destinies.