The Realm of Prester JohnIn this modern account of the genesis of a great medieval myth, celebrated science fiction author Robert Silverbergs explores the mysterious origins of Prester John, the astonishing Christian potentate of the East. Prester John was a legendary figure who cast a powerful spell over Latin Christendom for almost five centuries. Rumors of the warrior king prelates fabulous realms first reached Europe in the eleventh century and quickly assumed an exalted