The Oxford Murders by Guillermo Martinez (2006)

it is a winner of some literary award, which it highly deserves as it is an intriguing mystery. what i appreciated most about was its use of mathematics – and showing how the most obvious solution (or next step) is not the only possible solution. translated into every day life, our actions and words sometimes produced solutions (and consequences) which we never intended or expected. and the mystery is unravelling those unexpected connections.