Terry Pratchett, who is suffering from early-onset Alzheimer's and can no longer write using a keyboard, has given his blessing for his daughter Rhianna to write DISCWORLD novels and material when he is no longer capable (whilst noting that he will be 'incredibly angry' when that day comes).

Rhianna Pratchett is already a noted writer in the field of computer games, have written extensively on the medium for newspapers and magazines. She has also worked as a writer on several games, including MIRROR'S EDGE, the OVERLORD series and, most recently, on the new TOMB RAIDER (her father is a big fan of the originals, blaming them for slowing down his work-rate in the late 1990s). She will also be working on THE WATCH, a TV series featuring the Ankh-Morpork City Watch from several of her father's most popular novels.