S. D. Unwin began as a theoretical physicist searching for the Holy Grail of a quantum theory of gravity. He later turned his mathematical skills to analyzing and communicating catastrophic risk, from nuclear mishaps to major earthquakes. He has now settled happily on writing science fiction, and The Magni is his third novel, preceded by the time travel duology One Second Per Second and Fall Of Time. Hailing originally from Manchester in the United Kingdom, Bainbridge Island in Puget Sound is where he calls home.