Terry Pratchett 
The Carpet People 

In the beginning, there was nothing but endless flatness. Then came the Carpet . . .
That”s the old story everyone knows and loves. But now the Carpet is home to many different tribes and peoples and there”s a new story in the making. The story of Fray, sweeping a trail of destruction across the Carpet. The story of power-hungry mouls – and of two Munrung brothers, who set out on an amazing adventure.
It”s a story that will come to a terrible end – if someone doesn”t do something about it. If everyone doesn”t do something about it . . .
Co-written by Terry Pratchett, aged seventeen, and master storyteller, Terry Pratchett, aged forty-three.