lot worse than this by now, and so did my specialist." In the same interview, he said that the cognitive part of his mind was "untouched" and his symptoms were physical (normal for PCA). However, in July 2014, he cancelled his appearance at the biennial International Discworld Convention, citing his condition and "other age-related ailments". Death Pratchett died at his home from complications of Alzheimer's disease on the morning of 12 March 2015. He was 66 years old. The Telegraph reported an unidentified source as saying that despite his previous discussion of assisted suicide, his death had been natural. After Pratchett's death, his assistant, Rob Wilkins, wrote from the official Terry Pratchett Twitter account: The use of small capitals is a reference to how the character of Death speaks in Pratchett's works. Public figures who paid tribute include British Prime Minister David Cameron, comedian Ricky Gervais, and authors Ursula K. Le Guin, Terry Brooks, Margaret Atwood, George R. R. Martin, and Neil Gaiman. Pratchett was memorialised in graffiti in East London. The video game companies Frontier Developments and Valve added elements to their games named after him. Users of the social news site Reddit organised a tribute by which an HTTP header, "X-Clacks-Overhead: GNU Terry Pratchett", was added to web sites' responses, a reference to the Discworld novel Going Postal, in which "the clacks" (a semaphore system, used as Discworld equivalent to a telegraph) are programmed to repeat the name of its creator's deceased son; the sentiment in the novel is that no one is ever forgotten as long as their name is still spoken. A June 2015 web server survey reported that approximately 84,000 websites had been configured with the header. Pratchett's humanist funeral service was held on 25 March 2015. In 2023, a series of stories published in a regional newspaper under the pen name Patrick Kearns were discovered to have been authored by Pratchett in the 1970s and 80s. They will be published as A Stroke of the Pen: The Lost Stories in October. Personal life Pratchett married Lyn Purves at the Congregational Church, Gerrards Cross, on 5 October 1968. They moved to Rowberrow, Somerset, in 1970. Their daughter Rhianna Pratchett, also a writer, was born there in 1976. In 1993, the family moved to Broad Chalke, a village west of Salisbury, Wiltshire. Pratchett was the patron of the Friends of High Wycombe Library. In 2013, he