"It's a real long story, Kyle." Luke ran a hand through his graying hair. "It seems like Stacy--that's the ship we're on--can travel to different points in any universe's history. She takes us from different places, different times--there's no pattern, and it's hard to understand. I'm just glad to see a familiar face." He smiled a little. "Doesn't mean you can make jokes about my age, though."