A group of chromatic dragons called the Chroma Conclave attacked Tal'Dorei (and other parts of the world) in Chapter 4. Sovereign Uriel and several of his council members were slain in the initial attack. Emon and Westruun were severely damaged by the dragons, then further damaged by looters and opportunists, such as the people stealing from Gilmore's Glorious Goods in Emon and the Herd of Storms that sacked Westruun.