Beneath

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The mound where the fort used to be is barely visible, overgrown with grass and moss hiding the structures built beneath. It only looks like a lump almost to the summit of a hill, a natural bump in the landscape perhaps deposited by glaciers long melted. Those who walk over it sometimes comment on the hollow feeling beneath their feet in places; how would they feel if they knew one false move might send them plummeting into a cavernous prison be...