Pryde And The Infernal Device

"1805. England is in the midst of her war with France. Matthew Pryde, engineer at a coal mine in Kent, is regarded as the perfect 'spy' to send across the English Channel to investigate rumours that the French are digging a tunnel underneath the Channel. Matthew is accompanied by the mysterious Mr Black -- and the rather unexpected addition of the unconventional Kate Denton -- to France where they must investigate . . ."--Publisher.