Author George R.R. Martin is working on a project set roughly 300 years before events depicted in the series, according to Deadline.HBO declined comment on the report, which characterized the show as focusing on events that would eventually lead to the fall of House Targaryen, one of the major ruling families featured in Martin's books and the hugely popular series, which ended its run in May.Martin is said to be deriving the program from his book "Fire & Blood," and developing the pilot with Ryan Condal, whose credits include co-creating the show "Colony" with "Lost" producer Carlton Cuse.HBO has already produced another related pilot that takes place thousands of years before "Game of Thrones," starring Naomi Watts. The network has yet to take the next step of ordering a full series based on that concept.Additional sRead More – Source