A recent event was held for the world premiere of season three of HBO’s Game of Thrones, which the rest of us will get our eyes on when new episodes start airing on March 31st.

Speaking at the event, George R.R. Martin, the creator and author of the books on which the series is based, was asked about the other titles he may be working on for HBO after that recent two-year deal he signed.

He understandably could not speak much about what he was working on, but Martin did talk about the possibility of a Game of Thrones prequel series. Find out more about it below.