- Development Hell: William Patrick Maynard was authorized to write three Fu Manchu novels, with the first two releasing in 2009 and 2012. A third, The Triumph of Fu Manchu, has been announced (along with when it's set), but no word has been heard since.
- What Could Have Been: Years after Rohmer's death, his friend Cay Van Ash (who had previously completed a biography of Rohmer at the request of his widow) was authorized by the Rohmer estate to produce sequels. Ten Years Beyond Baker Street and The Fires of Fu Manchu were released in 1984 and 1987, respectively; however, Van Ash died in 1994 while he and his wife, who were living in Paris, France and researching the setting in preparation for a third book. The incomplete manuscript for The Seal of Fu Manchu is now believed to be lost.
Trivia / Fu Manchu