The Twins are an imposing and ancient fortress located in the Riverlands, straddling the two banks of the Green Fork of the Trident River. This unique positioning allows the castle to serve as a vital crossing point, making it an important strategic stronghold in the region. The two massive, interconnected towers of the Twins are made of weathered gray stone, their imposing shapes rising high above the river, creating an almost medieval spectacle of strength and defiance.

The Twins are renowned for their distinctive architecture—two tall, narrow towers that stretch across the river, connected by a narrow bridge. The bridge itself is the focal point of the fortress, with high stone walls and guard posts on either side, offering a vantage point for defenders and a bottleneck for attackers. The natural position of the river beneath the bridge makes it a critical point for controlling movement in the Riverlands, and the Twins have been a center of strategic importance for centuries.

The surrounding area of the Twins is flat and marshy, with small rivers, swamps, and meadows that extend as far as the eye can see. The landscape is rich in aquatic life, with reeds and waterfowl often populating the banks of the river, providing both beauty and a strategic advantage for defenders of the castle. Despite the fertile land nearby, the immediate area around the Twins tends to be boggy and difficult to navigate, contributing to the fortress’s reputation for defensibility.

Inside the castle, the Twins are a mix of grim and imposing architecture. The main halls are large and cold, with high ceilings and dark stone walls. Tapestries and banners of House Frey often hang from the walls, depicting the house’s long-standing rule over the Riverlands and their strategic control of the river crossings. The Great Hall serves as a place for feasts and gatherings, where alliances are forged and deals are made.

The Twins are infamous for their role in the politics of the Riverlands, often serving as a pla