Yenosia

Yenosia is a Horizon Realm. Originally called the Land of Dreams, it hosted a mage chantry called Arcosia consisting mostly of Chœur Céleste pacifists. In the 1700s it was discovered by the Order of Reason and the entire Realm was pulverized by its shock troops.

The now barren land was renamed the Wasteland of Dead Aspirations by the Traditions, but the Technocratic Union usually referred to it as Null-B, after the massive Construct they built in the center of the Realm.

in the late 1990s a huge uptick in Marauder attacks led to the Construct's destruction. What happened to Yenosia afterward is unknown.