It starts with archeologists finding a young girl buried she has what they believe to be a slave buried with her. They realize that she is very fragile and when they touch her her bones disintigrate. It then jumps back to her story, I think I remember she is a chiefs daughter and possibly a druid. She falls in love with a non druid and they end up killing her for it in 1982 or 1983 and it was a paperback. Thank you for any help you can give me!

I meant to say I READ it in 1982 or 1983