The Hedge Knight builds on Martin’s short story in the Legends anthology about Dunk and Egg. It collects the six-issue comic series into a single graphic novel. If you missed the comics, this is a good way to catch up. The events substantially predate those in the Song of Ice and Fire series, however, and appears to be independent – that is, no information that is necessary to understand the series is presented in the graphic novel, and vice versa.