Fedic is the town in the land of Thunderclap that surrounds the Castle Discordia.
Fedic holds one of the Dogans. This Dogan was used to extract a chemical from the brains of the kidnapped children from the Callas. This chemical was then given to the Breakers to enhance their telepathic ability. The Dogan was also instrumental in the birth of Mordred Deschain. One of the machines here made Mia mortal and another transmitted or "faxed" the fetus from Susannah Dean to Mia. A machine in the Dogan was also used to separate Mia from Susannah during Mordred's childbirth.
Fedic also contains a railroad station. Fedic Station was the last stop on Patricia the Mono's route.