Guards! Guards! by Terry Pratchett
Mass Market Paperback – HarperCollins – Apr 2013 – 403 pages
Long believed extinct, a superb specimen of draco nobilis (“noble dragon” for those who don’t understand italics) has appeared in Discworld’s greatest city. Not only does this unwelcome visitor have a nasty habit of charbroiling everything in its path, in rather short order it is crowned King (it is a noble dragon, after all…).
Meanwhile, back at Unseen University, an ancient and long-forgotten volume–The Summing Dragons–is missing from the Library’s shelves. To the rescue come Captain Vimes, Constable Carrot, and the rest of the Night Watch who, along with other brave citizens, risk everything, including a good roasting, to dethrone the flying monarch and restore order to Ankh-Morpork (before it’s burned to a crisp).