HBO is heading back to Westeros, but this time it's a story set 300 years before the events of Game of Thrones.

Revealed in an HBO presentation last night, the first proposed Game of Thrones prequel detailing the origins of the White Walkers will no longer be moving forward. However, a different prequel following the rise and fall of House Targaryen has been given a straight-to-series order.

Amazon are developing a TV series based on Robert E. Howard's classic fantasy hero, Conan the Barbarian. Conan retells the classic character’s story via a return to his literary origins. Driven out of his tribal homelands, Conan wanders the mysterious and treacherous world of civilization where he searches for purpose in a place that rejects him as a mindless savage.

After netting an Emmy for his work on Game of Thrones, director Miguel Sapochnik is setting sail for the seven seas with Sinbad