Divided into three parts, this book covers the phenomena, including materialisation, witnessed through the mediumship of Arnold Clare and then, in Part 2, the author (Harry Edwards), goes on to discuss with the spirit communicator as to how they are able to achieve what they do. We learn of the 'Ether' in which we live and how it can be manipulated; of other levels of existance, of how - now our knowledge of radio transmissions, atoms, protons etc. has progressed - they are able to better explain their work. But in the 1940s there were still things they could not explain. Would this still be the case in 2019, when we think we know a little more through Quantum Physics?