An offical letter from the King to Baron Worldbuilding
The kingdom is in turmoil. There has been an uprising among the knights and many of the nobles have been killed. Our country is in tatters!
I wish to send a messenger to Sir Andian, Lord of the Eastern Marshes, as he is our most powerful knight. He lives about 400 miles away, the last ~50 through marsh- and swampland.
I know not of any inventions known as "cars" or "planes". The only transportation available to me is a messenger on foot, or on a horse. Horses can make it through the swampland, but the roads there are long and winding. It would take roughly triple the time to get through a mile of swampland then it would take for a mile of flat, normal road.
However, I cannot send any messages to him. Is there any plausible reason to why this is the case?
There are simply too many roads in the kingdom for all to be guarded by bandits or rebels.
The message does not contain any oversensitive information, so everyone can be trusted with it.