sentences:  Needing a name author, the new partners solicited Baum, who was unhappy with his arrangement with Bobbs-Merrill, publisher of several of his previous works.Signing Baum to an exclusive contract (dated 16 January 1904), the partners and their author agreed that the best way to start their joint effort was with a sequel to Baum's greatest success to date.The second of the Oz books, "The Marvelous Land of Oz," was in print later in 1904, in time for the Christmas season.