Jack Higgins lived in Belfast till the age of twelve. Leaving school at fifteen, he spent three years with the Royal Horse Guards, and was later a teacher and university lecturer. His thirty-sixth novel, The Eagle Has Landed (1975), turned him into an international bestselling author, and his novels have since sold over 250 million copies and been translated into sixty languages. Many have been made into successful films. He died in 2022, at his home in Jersey, surrounded by his family.

Mike Ripley was born in 1952. As well as being a noted critic and Lecturer in Crime Writing, he is the author of the 'Angel' series of crime novels, for which he has twice been the recipient of a Crime Writers' Association Award. Working with the Margery Allingham Society, he completed the Albert Campion novel left unfinished, Mr Campion's Farewell, and has written further continuation novels in the series.