Clacks " Collector's Edition " board game- a Terry Pratchet game

Clacks is the informal slang name for a semaphore communications system which claimed to be the fastest form of long distance messaging on the Discworld. THE HISTORY OF CLACKS AND THE GRAND TRUNK SEMAPHORE COMPANY Invented by Robert Dearheart, the Clacks was the Discworld’s first telecommunications system. Using a complex semaphore system, Clacks operators transmitted messages via a series of shuttered lamps placed on high towers. The messages were then viewed via telescope from the next tower in the line, usually around 20 miles away. The inventor went on to found the Grand Trunk Semaphore Company, which created a network of towers stretching across the Sto Plains into the Ramtops and through the Unnamed Continent to Genua. Later, after a somewhat underhanded and definitely hostile takeover by a business consortium led by a rather ruthless financier named Reacher Gilt, Clacks quickly became the dominant method of messaging across much of the Discworld. The old postal service operated by the Ankh-Morpork Post Office quickly went into to decline but now, newly appointed Postmaster Moist von Lipwig is determined to fight back. A challenge has been made to the Grand Trunk Company to a race across the continent. Who will be the first to get their message from Ankh-Morpork