Into Battle (novel):FOLLOWED_BY:The Violet Keystone####Above the Veil:FOLLOWED_BY:Into Battle (novel)####Above the Veil:PRECEDED_BY:Aenir####Aenir:PRECEDED_BY:Castle (novel)
The Violet Keystone followed the novel Into Battle which itself followed Above the Veil. Aenir was the sequel to that book, and that book was preceded by the novel Castle.