John R. Barrett is a professional archivist, occasional archaeologist, historian, walker and cyclist who now lives scenically, with two cats, on Speyside in northeast Scotland. He has published original research into local history, Scottish history, archaeology, archive sources and historic landscapes. His study of the Civil War in Scotland, Elgin's Love-gift, and an edition of the memoirs of a seventeenth-century controversialist, Mr James Allan, inspired a historical novel Broken Sword. He has also written (pre)historical fiction for younger readers. Academic research, for a Ph D at Aberdeen University, forms the basis for A Regular Revolution.