Triumphs and Defeats
Triumphs and Defeats is a book written by Archmaester Vyron. It describes that the claim that the final form of Storm's End was the seventh castle, is a clear show of influence by the Andals. Should this be true, it would suggest the possibility that the final form of Storm's End was achieved only during Andal times.
- The World of Ice & Fire, The Stormlands: Storm’s End.