Those Who Cannot See the Future

"What happened to me?" David looked at the two people in the room, both greatly shocked, and asked Clark in confusion. "What did you see?" Cassandra might have understood; she had never seen his abilities before. But why did Clark look both shocked and afraid? "You..." Clark hesitated, his expression conflicted. Should he tell his brother? How would David react upon learning of that future? Would he stay alert and make sure he never became like that, or would he simply give in and slide all the way into darkness?