of Wiltshire, to transport himself and his fellow officers all the way to Fu Manchu's mountain base in the Himalayas. Meanwhile, Fu has recreated the elixir vitae, only to find that it has no effect on him – one of the ingredients used was faulty. Nayland Smith's country house is soon besieged by an army of Si-Fan. Nayland Smith demands an audience with Fu, and is transported to his old enemy, who is in poor health by this point. Nayland Smith reveals that he has hidden the real diamond. Fu offers to return the Crown Jewels in exchange for the diamond. Once Nayland Smith hands over the diamond, Fu has a new elixir vitae prepared for him. Fu becomes young and vibrant again. Fu willingly hands over the Crown Jewels to Nayland Smith's allies. He also has a diamond identical to the Star of Leningrad handed over to Capone, arguing that the Russians will not see any difference. In a private meeting, Fu expresses his appreciation of Nayland Smith, who has been the only worthy adversary of his life. He offers Nayland Smith part of the elixir vitae, but asks him not to drink it until he returns to London. Fu warns Nayland Smith that his latest fiendish plot will wipe out his enemies. Nayland Smith rejoins his fellow officers in time to see a rejuvenated Fu Manchu sporting an Elvis Presley-type jumpsuit. Fu rises from the floor, and his cohorts now form a rock band. They sing the song "Rock-a-Fu", as the story ends. Cast Sellers also appears in an uncredited cameo as a Mexican bandito. Background Sellers had previously recorded a 1955 Goon Show entitled "The Terrible Revenge of Fred Fu-Manchu" set in 1895. In the film, his Fu insists friends call him "Fred" and that he had once been the groundsman at Eton. In addition to Sellers, the film features Sid Caesar as FBI agent Joe Capone, David Tomlinson as Scotland Yard Commissioner Sir Roger Avery, Simon Williams as his bumbling nephew and Helen Mirren as Police Constable Alice Rage (Mirren sings the Music Hall standard, "Daddy Wouldn't Buy Me a Bow Wow"). Burt Kwouk, Sellers' co-star in The Pink Panther films with the character of Cato, makes a brief cameo appearance as a Fu Manchu minion who accidentally destroys the elixir vitae, prompting the joke that Fu thinks he looks familiar. John Le Mesurier, who appeared