King Rhyloth and the Iron Spring
The Seven Kingdoms stand on edge. The long standing King Rhyloth Targaryen is losing his grip on sanity. The stout and honorable Hand of The King Vaughn Stark has been replaced with a powerful adversary.
This chapter of the story starts in Stoneclad an old and highly defensible castle in the Mountain of the Moon known as the Tear of the Mountain. Here is the seat of power for House Embryn, a house that will have a large hand in the unfolding events.
To learn more about Westeros at this time, take a look at your wiki.