I think it was a made-for-T.V. movie back in the ’80s. I only remember the opening and parts of the end, but not much in between.
It starts with a bunch of kids going up into an old bell tower. They form a circle around this girl with long, very straight, blonde hair, doing some sort of ceremony. The bell falls on top of the girl and I think it might have even bounced, for when it’s removed, she’s gone.
(At least, I THINK there was a bell. It might have just been a great flash of golden light. But I’m 99.9% sure a big huge bell fell on her then maybe bounced away.)
Years pass, I forget entirely what happened in between, but eventually the kids, now adults, return to the bell tower and repeat what they did. I think, but I’m not sure, that the bell fell again. I do know that this time the missing girl’s mom, now a grey haired old lady, is there, and the girl reappears, I’m pretty sure she was still the same age she was when she disappeared – or she might’ve grown up to her early 20s while gone, but I’m thinking the former. I remember her going to hug her mom. And – that’s it. If they ever resolved how people were going to explain how she reappeared or any thing like that, I don’t remember.
Heck, I don’t even remember if the bell tower was supposed to be haunted or what have you. And for some reason, even though I remember a bell and a long climb up, the set reminded me more of a barn loft. Lots of room, sunlight, and unpainted wood.