Harold Shea is the protagonist of a series of science fantasy stories by Fletcher Pratt, L. Sprague de Camp, L. Ron Hubbard (unauthorized), Christopher Stasheff, Holly Lisle, John Maddox Roberts, Roland J. Green, Frieda A. Murray, Tom Wham, and Lawrence Watt-Evans. The series is also known as the "Enchanter" series, the "Incomplete Enchanter" series (after the first collection of stories) or the "Compleat Enchanter" series. Shea first appeared in "The Roaring Trumpet" by Pratt and Camp in 1940. His most recent canonical appearance is "Return to Xanadu" by Watt-Evans in 2005.
In the original stories, 20th-century American psychologist Harold Shea and his friends travel to various parallel worlds where ancient myths or old literature are reality. In the course of their travels, Shea meets a princess from a medievalistic world. They marry and have a daughter.
In "Sir Harold and the Gnome King," one of Camp's final set of Shea stories, Harold visits the Land of Oz. Shea finds that Oz' anti-aging spell has been broken, and Queen Ozma has grown up and married King Evardo XV of Ev. He rescues the royal couple's son Prince Oznev from the clutches of the Gnome King Kaliko, with help from an ironic source - the former Gnome King Ruggedo. Shea receives a knighthood in the process.