Mickey Mouse universe to Duckburg, the city in which Donald Duck lives (see Donald Duck universe). According to traditional continuity, both cities are located in the fictional U.S. state of Calisota – analogous to Northern California. The most consistent aspect of the Mickey Mouse universe is the characters. The most well-known include Mickey's girlfriend Minnie, pet dog Pluto, friends Horace Horsecollar, Clarabelle Cow, Donald Duck, Daisy Duck and Goofy, and nemesis Pete. Some Disney productions incorporate characters from Disney's animated feature films, such as "Bath Day" (1946; in which Figaro from "Pinocchio" appears as Minnie's cat), "Mickey's Christmas Carol" (1983), and – most
The Secret of Atlantis Knowledge," a forerunner of the Junior Woodchuck Guidebook, is mentioned, and the story features the first appearance of Scrooge's "worry room". Another first time debut was Donald's residence, listed as "1313 Webfoot Drive". It was split into three parts that ran conjuctive to each other, who gets the last word on debt, chasing after a coin which culminates into a pie fight (at a place called the "Atlas Bakery", giving a cryptic hint of the main plot), then finally Scrooge and Donald's discovery, and subsequent escape from, Atlantis. After checking his books, Uncle Scrooge sees a long overdue debt from