Children are fascinated by the unknown and mysteries. This series builds on this fascination to provide an accessible explanation of some scientific techniques and the way science can be used to attempt to explain phenomena. Within each book a famous mystery is described, and the case for and against a rational scientific explanation is put forward. Evidence is provided in the form of eyewitness accounts and written and pictorial reports. Whilst there may not be a scientific explanation for each phenomenon, the books do not attempt to reduce the mystique of each one, but instead offer a variety of possibilities to allow readers to come to their own conclusions. Recurrent themes within the series are: - scientific developments and techniques used to examine evidence - links between science and natural phenomena - materials and processes used to create and expose fake evidence