This book is an exciting thriller, where the characters are hunter-scientists and evasive neutrinos. Tiny particles that we call neutrinos provide answers to global questions: why is it so difficult to detect antimatter, how do stars explode and turn into supernovae, what happened in the Universe in the first seconds of its life, and even what happens in the bowels of our planet? The book by the famous astrophysicist Ray Jayawardhan is dedicated not only to the history of neutrino research. She excitingly talks about people who push the boundaries of human knowledge. The reader will meet the insightful theorist Wolfgang Pauli, the restless genius Ettore Majorana, the harbinger of the atomic age Enrico Fermi, the selfless Marie and Pierre Curie, the romantic Bruno Pontecorvo, who ventured to the USSR during the Cold War; finds out why neutrinos will change our understanding of physics, cosmology and life on Earth in the next decade.