This was one of Terry Pratchett's last books and probably one of his cleverest so I really highly recommend this journey not into Discworld but Victorian London. A tosher (someone who picked up treasures that were flushed down into the sewers) comes into the acquaintance of Charles Dickens, Henry Mayhew and a host of other famous characters when he rescues a girl from being beaten. This sets afoot a great adventure, as exciting as it is amusing and turns a lowly street kid with not the greatest support of the law into something of a society gentleman. The book is well written, flows smoothly and contains a fabulous mix of historical figures and fictional characters. One hopes they will make a film out of it for the cinema, not just a telly movie, but just read!