Gormenghast Castle is a fictional castle featured in the Gormenghast series of novels by Mervyn Peake. It is characterized by its vast, crumbling architecture and intricate, labyrinthine layout, which reflects the decaying grandeur of the noble Groan family that resides there. The castle is set in a remote, fictional landscape and serves as the primary setting for the series. The castle is not just a backdrop but a living entity that influences the characters and events within the story. Its many towers, halls, and hidden passages create a sense of isolation and tradition, embodying the themes of ritual and the passage of time that permeate the narrative.