This anthology contains: Introduction – Isaac Asimov "Mazirian the Magician" – Jack Vance "Please Stand By" – Ron Goulart "What Good Is a Glass Dagger?" – Larry Niven "The Eye of Tandyla" – L. Sprague de Camp "The White Horse Child" – Greg Bear "Semley's Necklace" – Ursula K. Le Guin "And the Monsters Walk" – John Jakes "The Seeker in the Fortress" – Manly Wade Wellman "The Wall Around the World" – Theodore R. Cogswell "The People of the Black Circle" – Robert E. Howard