In February 2017, Audible released "Sherlock Holmes: The Definitive Collection", a complete collection of Sherlock Holmes stories, all read by Fry, who also narrated an introduction for each novel or collection of stories. Fry is the patron of the audiobook charity Listening Books. Fry said of his patronage, "I’m proud and delighted to be patron of the first audiobook charity to offer downloads to its members and excited about what this will mean for all print impaired people who can now listen on-the-go." In 2017, Fry also released his own audio book on Audible, titled "Mythos", which he both wrote and narrated. In November 2018, Fry released a follow-up to "Mythos", titled "Heroes". Fry's distinctive voice has been featured in a number of video games, including an appearance as Reaver, an amoral supporting character in Lionhead Studios games "Fable II" and "Fable III", and as the narrator of the "LittleBigPlanet" series. He also narrated the first four "Harry Potter" games: "Philosopher's Stone", "Chamber of Secrets", "Prisoner of Azkaban", and "Goblet of Fire". Fry has appeared in numerous advertisements – either on-screen or in voice-over – starting with an appearance as "Count Ivan Skavinsky Skavar" in a 1982 advert for Whitbread Best Bitter. Fry has said, in his memoirs, that after receiving his payment for this work – £25,000 – he has never subsequently experienced "what one could call serious money troubles". He has since appeared in adverts for products and companies such as Marks and Spencer, Twinings, Kenco, Vauxhall, Honda, Direct Line, Calpol, Heineken, Alliance & Leicester (a series of adverts which also featured Hugh Laurie), After Eight mints, Trebor, Panama cigars, Virgin Media, Orange Mobile, and Walkers potato crisps (fronting a new flavour). He filmed a 2016 advertisement where he explains the essence of British culture to foreigners arriving at London's Heathrow Airport. Since the publication of his first novel, "The Liar" (1991), Fry has written three further novels, several non-fiction works and three volumes of autobiography. "Making History" (1996) is partly set in an alternative universe in which Adolf Hitler's father is made infertile and his replacement proves a more effective Führer.