Douglas Watt is a historian, poet and novelist who lives in Linlithgow with his wife Julie and their three children. He won the Hume Brown Senior Prize in Scottish History in 2008 for The Price of Scotland: Darien, Union and the Wealth of Nations (2007). Testament of a Witch is the second in his series of ingenious murder mysteries set in seventeenth century Scotland featuring lawyers John MacKenzie and David Scougall.