A Discworld Novel
The Fifth Elephant is the 24th Discworld novel by Terry Pratchett. It introduces the clacks, a long-distance semaphore system. The Ankh-Morpork City Watch is expanding; there is now a Traffic department with traffic cameras implemented using iconograph technology and a wheel clamping team, and the clacks is beginning to replace homing pigeons for communications between officers. The Watch is also investigating the theft of the replica Scone of Stone (a parody of the real-life Stone of Scone) from the Ankh-Morpork Dwarf Bread Museum. (The Scone of Stone in the novel is kept under close guard in a dwarf mine in Überwald, and will form a vital part of the forthcoming coronation ceremony of the dwarfs' new Low King.)