Saludos Amigos and The Three Caballeros, resulted from this trip. Ryman had become acquainted with author Margaret Landon during his travels in Asia. After the end of World War II, when he heard that 20th Century Fox was developing a film based on Landon's 1944 novel Anna and the King of Siam, he informed Disney that he was leaving Walt Disney Productions to work on the 20th Century Fox film. At Fox, Ryman also worked on several other pictures, including Forever Amber, Down to the Sea in Ships, David and Bathsheba, The Black Rose, and The Robe. During the summers of 1949 and 1951, Ryman took a leave of absence from 20th Century Fox and travelled with the Ringling Bros. and Barnum & Bailey Circus. Living among the performers and documenting the circus in his paintings, he became friends with Emmett Kelly. In 1955 Doubleday published The Tontine, a two volume novel written by Thomas B. Costain and illustrated by Ryman. Set in nineteenth-century England, the story centers around the fictional "Waterloo" tontine, established to benefit veterans of the Napoleonic wars. Among other plot twists, shareholders hire an actor to impersonate a dead nominee, and conspire to murder another member. After leaving the Disney organization, Ryman had remained friends with Walt Disney. On September 26, 1953 he received an urgent request to meet with Disney. Disney asked Ryman to render the artwork for a Disney envisioned theme park. Disney and Ryman worked non-stop throughout the weekend creating a large pencil sketch and several other drawings illustrating the project. Roy Disney took the drawings and a six-page portfolio to New York to show investors the plan in order to secure financing used to develop Disneyland. Once financing was assured, Disney asked Ryman to rejoin the Disney Company. Disneyland became the centerpiece of his Disney career. Among his contributions were designs for Main Street, U.S.A., Sleeping Beauty Castle and New Orleans Square. Herb also contributed concepts for the Jungle Cruise, Pirates of the Caribbean, and for attractions featured at the 1964-65 New York World's Fair, including Great Moments with Mr. Lincoln. Ryman worked on many special projects at Disney over a five decade span. He was the chief designer of the Cinderella Castle at the Walt Disney World Resort. Ryman officially retired from The Walt Disney Company in 1971. He returned in 1976 as a consultant on Walt Disney World, Epcot Center