Not much is known about the Agathym Tribelands anymore. the name references the state of the realm over 1000 years ago, before the Rift separated it from the rest of the mainland. The last word from there was reportedly from a group of mages from Rha’Dalsehm who described the land suddenly losing it vibrance and the sky blackening. Supposedly shortly thereafter was some form of earthquake before the Rift appeared.
These days Agathym is known for two things. One, for being a point of debate between scholors who ponder which we know less about the Tribelands or the Faerie Forest. Two, as the land that Lannis is directly over at all times.