Sapper was the pen name of Herman Cyril McNeile, chosen because he served for some years with the Royal Engineers, who are popularly known as 'sappers'. His most famous character - the formidable Bulldog Drummond - inspired a hugely popular series and several films, making Sapper one of the most popular novelists of his generation.

Robert Giddings is a well-established literary critic who regularly reviews for many publications including the Sunday Times, the Guardian and the New Statesman.