What is west of Westeros?

I sent a raven from House Baratheon to head west of Westeros in an attempt to acquire outside evidence on the current state of the Realm. Not too long ago a raven returned with news of great things for the Seven Kingdoms as a whole but some really bad news for some houses. The message that Raven brought back in return can be found here. http://ratemyleague.webk-vps.net/shows/GameOfThrones.mp3