Robert Bruce Montgomery was born in Buckinghamshire in 1921, and was a golden age crime writer as well as a successful concert pianist and composer. Under the pseudonym Edmund Crispin, he wrote 9 detective novels and 42 short stories. In addition to his reputation as a leader in the field of mystery genre, he contributed to many periodicals and newspapers and edited sci-fi anthologies. After the golden years of the 1950s he retired from the limelight to Devonshire until his death in 1978.

Val McDermid is a No.1 bestseller whose novels have been translated into more than thirty languages, and have sold more than sixteen million copies. She has won many awards internationally, including the CWA Gold Dagger for best crime novel of the year. She was inducted into the ITV3 Crime Thriller Awards Hall of Fame in 2009, was the recipient of the CWA Cartier Diamond Dagger in 2010. Val writes full time and lives in Edinburgh and the East Neuk of Fife.