Throughout the 1970s, Rankin/Bass, with Video Tokyo and former Toei animator Toru Hara's Topcraft, continued to produce animated sequels to its classic specials, including the teaming of Rudolph and Frosty in 1979's "Rudolph and Frosty's Christmas in July," with the voice of Ethel Merman as Lilly Loraine, the ringmistress of a seaside circus, and Rooney again returning as Santa. The special features cameos by characters from several other Rankin/Bass holiday specials, including Big Ben from "Rudolph's Shiny New Year" and Jack Frost from "Frosty's Winter Wonderland". Later that year, Jack appeared in his own special, "Jack Frost". Narrated by Buddy Hackett, it tells the story of the winter sprite's love for a mortal woman menaced by the evil Cossack king, Kubla Kraus (Paul Frees, in addition to Kubla, voiced Jack Frost's overlord, Father Winter himself). In this special, Jack's voice was performed by Robert Morse, who previously voiced Stuffy in 1976's "The First Easter Rabbit" (loosely based on Margery Williams' "The Velveteen Rabbit"), and young Ebenezer Scrooge in 1978's "The Stingiest Man in Town" (based on Charles Dickens' "A Christmas Carol"). Among Rankin/Bass's original specials was 1975's "", featuring the voice of Angela Lansbury (who also starred in the 1982 adaptation of "The Last Unicorn") as the narrating and singing nun, Sister Theresa, and Irving Berlin's Christmas classic "White Christmas". Their final stop-motion style Christmas story was "The Life and Adventures of Santa Claus", taken from the L. Frank Baum story of the same name and released in 1985. In this story, the Great Ak summons a council of the Immortals to bestow upon a dying Claus the Mantle of Immortality. To make his case, the Great Ak tells Claus's life story, from his discovery as a foundling in the magical forest and his raising by Immortals, through his education by the Great Ak in the harsh realities of the human world, and his acceptance of his destiny to struggle to bring joy to children. This special has recently been released as part of the Warner Brothers Archive Collection on a double-feature disc that also contains "Nestor the Long-Eared Christmas Donkey" which is often paired with "The First Christmas" on holiday broadcasts.