John Harris and Richard Wilbourn have been researching the Rudolph Hess case since 1987, shortly after Hess died in Spandau, Berlin. Since then they have written seven authoritative books on the Hess flight and mystery. When not so engaged, they have full time employments; Harris as a Chartered Accountant in Northamptonshire and Wilbourn a farms manager on a large Norfolk estate. Over the past 25 years they have made some major discoveries pertaining to the Hess affair and now are regularly quoted as reliable sources by others.