Fellos was once the home of the Felikaush order. Founded shortly after the death of Felix of Lee, it was named Fellos after him and became the chief center of learning in Sonngefilde. No human library in the world could match it (though both the libraries of Metamor and Yesulam were close).
In 690 CR, the entire city was laid waste by the Order of the Ebon Dragon because they would not submit to the Order's rule. In the fires that ensued, most of the collection was destroyed, and apart from Zhypar Habakkuk who was sent abroad the year before, all of the Felikaush were killed.
The city of Fellos remains a ruin, populated only by scavengers both animal and man.