J.K. Rowling is a dark horse. While we thought she was enjoying a post-Harry-and-Casual-Vacancy tea break, she was writing a mystery, The Cuckoo’s Calling, under the name Robert Galbraith. Although Galbraith was a ruse, there was no fooling our mystery reviewer, Teresa L. Jacobsen, about the book’s quality: she named it a debut of the month in our April 1 issue. You can take regular advantage of Jacobsen’s eye for a great read in her monthly mystery column. Also take a look at Jacobsen discussing her big win on CNN International.