I must be really rusty – I messed up the blockquote in this thread also. The end of my previous post should be:
“Where is your home?” he inquired…
“Have you heard of the city of Bes Palargic?… Bes Palargic is the major seaport of the Agatean Empire… You sail turnwise from the Brown Islands for about a week and there it is.”
Yet Twoflower is described as “the first tourist ever to set foot on the Discworld” implying that he is from a different world.