***Editing to say I will be the only one attending, no H. And this wedding is across the country so I'd be flying and staying overnight***
I just got invited to a high school friend's wedding! We've only had intermittent contact in the 15 years since high school. I'd be excited to see him and his soon to be Mrs. but I don't know who else he's invited from HS, and really don't want to show up not knowing anyone from his college life. I've done that before and it's awkward.
How do I nicely ask if anyone else I'll know is attending, and then, not rudely, decline if I won't know anyone?