Sir Terry Pratchett sold his first story when he was thirteen, which earned him enough money to buy a second-hand typewriter. His first novel, a humorous fantasy entitled The Carpet People, appeared in 1971 from the publisher Colin Smythe.
There is a hint of Armageddon in the air. According to the Nice and Accurate Prophecies of Agnes Nutter, Witch (recorded, thankfully, in 1655, before she blew up her entire village and all its inhabitants, who had gathered to watch her burn), the world will end on a Saturday. Next Saturday, in fact. So the Armies of Good and Evil are massing, the four Bikers of the Apocalypse are revving up their mighty hogs and hitting the road, and the world's last two remaining witchfinders are getting read to Fight the Good Fight. Atlantis is rising. Frogs are falling. Tempers are flaring, and everything appears to be going to Divine Plan.