Entered in a 200 word Double Drabble Contest in Third Floor Corridor.
Balance:
It was a precarious line to live on. One misstep, one stumble, and he would go falling into the dark abyss that waited on one side of the thin line he balanced carefully on. There was no chance that he would fall on the light side, only darkness would meet him if he failed. So many people, both the weak and the strong, had failed to do what he strived for. Then again, none of those people were him. None had his power, brilliance, and sheer stubbornness. It was a hard life, no doubt, but would anything worthwhile ever be easy? It'd have probably been easier if he wasn't watched so carefully.
Dumbledore, it seemed, saw him more clearly than anyone else, and could see the balance he battled for. No matter where he turned, no matter what he did, he always seemed to be watching, waiting for the one slip, and the darkness to overcome him. He wasn't concerned with the Old Fool now, though, he needed to concentrate on his plans. Nothing was more important.
So wrapped up in his plans, however, he failed to notice when he lost that balance, and went tumbling headlong into the Darkness.