 Clavell's third novel, "Shōgun" (1975), is set in 17th century Japan, and it tells the story of a shipwrecked English navigator in Japan, based on that of William Adams.When the story was made into a TV miniseries in 1980, produced by Clavell, it became the second highest rated miniseries in history with an audience of more than 120 million, after "Roots".Clavell's fourth novel, "Noble House" (1981), became a bestseller that year and was adapted into a TV miniseries in 1988.