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The PORTAL: Some doors should never be opened

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Paul Clarke is assigned by his magazine to cover a scientific demonstration, expecting it to be a waste of time. To his surprise, the experiment succeeds, opening a portal to an alternate reality. But the triumph quickly turns into a nightmare as terror is unleashed on an unprepared world. After barely surviving the chaos, Clarke encounters another looming threat, which he believes could be connected to the first, but with even graver consequences—not just for him, but for all of humanity.