Post by R'hllor, Lord of Light on Mar 28, 2015 4:33:45 GMT
Storm's End is the seat of House Durrandon along Shipbreaker Bay. One of the strongest castles in Westeros, it has served as the seat of the Storm Kings for thousands of years, with walls rumored to be crafted from spell as much as stone. Forty feet thick at it's thinnest side, the stone alone would be enough to repel any siege.