|Holotome Profile: Fortress of Iron Will|
|Location||Great Rift Valley, Africa|
|First Appearance||"Sophie on Trial"|
|Gallery | Appearances|
The Fortress of Iron Will is a Casterwill family stronghold located in the Great Rift Valley of Africa. This place is where the Casterwill Elders meet. It was also the location of the Ring of the Legendary Titan of Valor, Mythras, the prize of the Test of Courage.
The Stronghold houses many Icarus and Feyone Titans, as well as a Coralgolem Titan, within its statues in order to defend the stronghold. Only Focauld Casterwill and the Rue Guardians can activate the guardian Titans through using a long ritual.