2. The Slender Sickness
Two weeks later, the unseen presence of the entity began to manifest as violent physical trauma, systematically corroding both Thomas’s life force and his sanity. The boy had officially fallen into the agonizing grip of the Slender Sickness. What began as dry, hacking coughs rapidly devolved into severe, uncontrollable vomiting fits. Thomas began throwing up a thick, blackish fluid that reeked of rusted iron, heavily streaked with fresh blood. The family doctor was utterly baffled; every medical test and scan came back perfectly normal, even as the child's physical body visibly decayed before their eyes.
More horrifying, however, was the neurological destruction. Inside Thomas’s skull, a maddening noise rang without pause—a piercing, high-frequency screech intertwined with the distorted static of a broken radio. The static grew louder, more frantic, and more relentless by the day. There were nights when his parents would bolt awake to a repetitive, sickening THUD... THUD echoing down the hall. Rushing into his room, they would find their son violently slamming his forehead against the wall, his brow split open and bleeding, in a desperate, frenzied attempt to drown out the frequency burning through his brain.
Thomas emaciated rapidly. He became a walking skeleton, his skin pale and translucent, with dark, sunken hollows around his eyes like a corpse. He stopped sleeping entirely. In the blackest hours of the night, he used whatever he could lay his hands on—pencils, crayons, and eventually his own bleeding, self-mutilated fingertips—to "redecorate" his sanctuary.
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Every inch of the four walls was covered in thousands of frantic, erratic strokes, repeating a single, ominous symbol over and over: a circle crossed out by a massive X (The Proxy/Slender Man mark).
Looming amidst the jagged black lines meant to represent the dense forest was a towering, unnaturally thin silhouette. It possessed no face, no features, but had limbs that stretched out like the rotting roots of an ancient oak, seemingly wrapping around the house to crush it.
