HBO's A Knight of the Seven Kingdoms animated series will draw from unreleased George R.R. Martin source material, Polygon reports. The show adapts Martin's novellas set centuries before the events of Game of Thrones, focusing on the adventures of Ser Duncan the Tall and his squire Egg during the Targaryen dynasty.
The series gains access to canon pages Martin has written but never published, giving the adaptation deeper lore than the original printed stories contain. This approach mirrors HBO's strategy with House of the Dragon, which similarly expanded beyond source material to develop the Targaryen civil war narrative.
Martin's involvement marks a shift in how his intellectual property reaches audiences. While he continues work on The Winds of Winter, the long-delayed sixth mainline novel, his unpublished notes and drafts are flowing into television projects. The Game of Thrones author has been notoriously slow with the books. A Feast for Crows arrived in 2005, followed by A Dance with Dragons in 2011. Winds of Winter remains unfinished after more than a decade.
A Knight of the Seven Kingdoms represents a different creative direction. The animated format allows for stylized storytelling that differs from House of the Dragon's live-action approach. The show's production team can experiment with visual techniques while staying grounded in Martin's world-building.
The move signals Martin's preference for television as the primary medium for new Game of Thrones content. With multiple shows in development at HBO and Max, the franchise expands through adaptation and original television rather than waiting for completed novels. For fans desperate for new canonical material, this arrangement offers access to stories Martin has crafted but not yet published in book form.
The release schedule for A Knight of the Seven Kingdoms has not been announced, though production remains active at HBO.