Aberdeen, 1631. University librarian Robert Sim takes receipt of a gift of books recently arrived from overseas, mysterious works on alchemy and hermetics - the pursuit of ancient knowledge. By nightfall he has been brutally murdered. His colleague and good friend Alexander Seaton is left with the task of hunting for clues as to his killer's motive, as well as locating the missing books. What did Sim discover in the package, and what makes these books so dangerous? Crucible is a fantastic historical thriller that imagines deep-rooted deceptions and a secret whose revelation spells danger for anyone who comes close.
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. The Devil's Recruit, her fourth novel, follows three highly acclaimed historical thrillers, The Redemption of Alexander Seaton, A Game of Sorrows and Crucible.