The thrilling inter-war mystery series First published as Line of Sight under A. C. Koning. London, summer 1927. Frederick Rowlands, a First World War veteran who was blinded at Ypres, is working as a switchboard operator in the City when an over-heard telephone conversation draws him into a murder case. From then on, his safe and conventional life, painstakingly reconstructed after the horrors he experienced in the trenches, is shaken to its very foundation. As Fred is drawn deeper into a web of lies and half-truths, he must rely on his remaining senses, as well as his remarkable memory, to uncover the shocking truth about the murder which threatens to undermine everything he holds dear.