Murder in Black Letter

"Murder in Black Letter" is a detective novel written by American science fiction author Poul Anderson and first published in 1974. The book tells the story of a murder investigation set in a fictional medieval European university town. The protagonist, Brother Erasmus, is a scholar and monk who must use his intelligence and wit to unravel a complex web of deceit and corruption. The novel is known for its accurate historical detail, its engaging characters, and its clever plot twists. It is considered a notable example of the historical mystery genre and a significant departure from Anderson's usual science fiction themes. The book was well received by critics and remains a popular work among fans of the detective fiction and historical fiction genres.