Gavin is one of many wonderful characters in the Discworld. He deserves a true farewell. Thank you Gaspode.

The story begins in a rainforest in Bhangbhangduc. Along the way librarians, orangutans, witches, royalty, wee free men, travelling monks, unwilling wizards, willing locals, strange entities, talking animals, teachers and heads of government get caught up in the web. Crime, intrigue and betrayal unfold on the Counterweight Continent, which is hardly unusual. It ends when it ends.

It starts with a crime, but so do many things in Ankh-Morpork. What's different is how deep it goes – and how far. Of course the Watch becomes involved, of course the stakes are high and, of course, it all goes pear-shaped. On the plus side, Sam, Sybil and Angua travel to new places and cause new problems. Cheery gets to run the Watch and as for what happens to Fred and Nobby ...