"I know." Palmer nods. "Messing with history is dangerous. Have you read A Sound of Thunder?"

Palmer's been thinking about that story lately. He wants to save his team, but if he would change the way things are meant to be he might cause more harm than good.

"I don't know what's supposed to happen in my world. Maybe it hasn't been decided yet. But if I was supposed to die back there, if that alien was meant to kill me..." He shivers. "I didn't want to die. Especially like that. Not just dying, becoming a monster myself and attacking my friends."