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Clark landed beside the time machine and was just removing the tarp when a headache hit him, hard and fast. He buckled at his knees, the scenery swirling around him, as he dropped to the pavement. Every muscle in his body felt as if it were being torn apart. Kryptonite. It had to be. But kryptonite had never hurt as badly as this. No, with kryptonite, it felt as if he was on fire. This... this was like being torn apart by wild horses. He gritted his teeth and closed his eyes, as the agony continued, unabated.
Is this the time stream remodeling itself to account for Clark's interference?

I can't wait for more!