I enjoyed Douglass’ “Threshold” a few years ago and looked forward to trying some of her series. This is the first book in the series “The Crucible,” which takes place in the 14th century in the years following The Black Plague, an interesting and turbulent period in Europe. Thomas, a Dominican friar, is visited by St. Michael, who tells him that demons abound in Europe and that it is his life’s task to stop them. Although I didn’t love it, I’ll definitely finish the series. Another wonderful book that takes place during this time period is “Katherine” by Anya Seton.