Domunas

Domunas was a Exandrian continent during the Age of Arcanum. It is the home continent of Avalir and Cathmoíra, two cities that used to be the singular city of Toramunda at Mount Ygora. After being shattered by the power of the Astral Leywright, it came to be known in the Post-Divergence era as the islands that make up the Shattered Teeth.

Geography
Domunas was indicated to be Avalir's final stop after Vasselheim and that the city passed over ocean on its way, indicating that it was separated from Issylra by ocean in one direction. Avalir apparently also passed over Gwessar on its way to Domunas.

Mount Ygora was located on Domunas.

History
Before he was banished from Exandria during the Schism, Asmodeus claimed that Domunas was his favorite of the continents. During the Schism, Pelor and Melora sealed two primordials, Emperor Rau'shan of Fire and Empress Ka'Mort of Earth, below Mount Ygora. This holy site became known as Toramunda and was tended by the Gau Drashari druids.

Over time, Toramunda attracted many new residents and grew into the city of Cathmoíra. The elemental power of this place then attracted wizards, who made a deal with the Gau Drashari: the wizard could lift the city of Avalir from the brumestone-rich mountain, so long as Avalir returned every seven years with collected magical ether to bring about a regular month-long event called the Replenishment. When Avalir released the ether into the vast lands of Domunas, it caused an explosion in crop yields for a year, a flourishing of fey, and often a spike in the births of magical children. It would also cause "doors to lands of wonder and plenty and magic [to] open".

Although the supposed share of ether for Domunas was around 75%, the contract haven't been fullfilled for the past two or three Replenishments (for 14-21 years prior to the Calamity). Just less than 5% of the city's ether was actually going to go into the ground of Domunas for the last Replenishment and the rest was getting caught up by the Astral Leywright or funneled out to archmages of the city to unnaturally extend their lives.

When the Betrayer Gods returned to Exandria at the start of the Calamity, they intended to break the seals of Rau'shan and Ka'Mort and side with the primordials. This was foretold at the Hall of Prophecy to mean the destruction of the world. Laerryn Coramar-Seelie was able to modify her Astral Leywright to instead disenchant Rau'shan and Ka'Mort and send them across the planes, but in doing so, released a huge amount of energy that destroyed the continent.

Trivia

 * The name "Domunas" is similar to the Latin "domus", meaning "home" or "house". In Ancient Rome, a domus was specifically a type of house occupied by the elite.