Terry has been diagnosed with early on-set Alzheimer's disease. This two-part series follows Terry coming to terms with his diagnosis, living with his condition, facing the certainty of its conclusion and his mission to find a cure. Adamant that he has 'done nothing wrong' and that Alzheimer's sufferers should not be stigmatised, this is a genuine personal journey of one man, through the science and the reality of what it's like to be diagnosed with Alzheimer's disease. As of December 2007 Terry Pratchett has sold more than 55 million books worldwide, with translations made in 33 languages. He is currently the second most-read writer in the UK.