Read on for a synopsis of the third season and details of how to enter the competition...
As Blackwater Bay cools, the victors consolidate their power and rebuild King's Landing. But new challengers for the Iron Throne rise from the most unexpected places. Characters old and new must navigate the demands of family, honor, ambition, love and - above all - survival, as the Westeros civil war rages into autumn.
As season three begins, the Lannisters hold absolute dominion over King's Landing after repelling Stannis Baratheon's forces. Yet Robb Stark, King in the North, still controls much of the South as well, and has yet to lose a battle. In the Far North, Mance Rayder has united the wildlings into the largest army Westeros has ever seen. Only the Night's Watch stands between him and the Seven Kingdoms, but nobody knows what happened to its Lord Commander and the force he led beyond the Wall.
Across the Narrow Sea, Daenerys Targaryen - reunited with her three growing dragons - ventures into Slaver's Bay in search of ships to take her home and allies to conquer it.
Check out our coverage of the Game of Thrones season three London premiere and Q&A here, and read our review of the season three opener 'Valar Dohaeris' here.
To be in with a chance of winning, firstly make sure you like us on Facebook (or follow us on Twitter)...
...Then complete your details below, using the subject heading "KHALEESI". The competition closes at midnight on Saturday, April 20th and is open to entrants worldwide.