The Legion is not just an army in The Fathom, but an entire philosophy of rule: disciplined, efficient, and increasingly unable to remember why it first existed.
Its presence is felt in gates, patrols, decrees, uniforms, and the slow suffocation of civic life. The Legion gives the story a social and political texture that makes oppression feel systemic rather than symbolic.
That breadth is what makes it unsettling. More than a single enemy, it is an institution that still speaks the language of duty even while draining the life out of the places it governs. It feels fallen rather than merely monstrous, which gives its corruption a heavier moral weight. Its fall from purpose is part of the menace.