Memories: Lost and Found

I sat up. My head throbbed violently, and I felt horribly sick. I felt cold, dewy grass under my legs. Where am I? I thought wildly. Then I noticed people. There were people crouching right by me, as if expecting me to turn into an alien. There was a girl, about my age, wearing a baseball glove and a New York hat. On my other side, there was a boy, maybe a little bit older than me, wearing a dark blue wind-breaker jacket and carrying a baseball bat. Why are they just staring at me? Who in the world are they? Well, no doubt they could tell me their names, at least.
"Um..." I ask…