S.G. MacLean has a PhD in history from Aberdeen University, specializing in sixteenth and seventeenth century Scottish history. She lives in Conon Bridge, Scotland with her husband and four children. She has written four highly acclaimed historical thrillers set in Scotland, The Redemption of Alexander Seaton, A Game of Sorrows, Crucible and The Devil's Recruit. Her latest series of historical thrillers is set in Oliver Cromwell's London. The first book in the series, The Seeker, won the CWA Endeavour Historical Dagger and the second, The Black Friar, was longlisted for the same award.