Looking for a series I read when I was in middle school 20-25 years ago. All I remember is a girl visiting an older man on her way home from school is accidentally transported to a different reality.
Time passes more quickly for her than this world. I think she was gone 6 months for her, but more like minutes here. She has to survive and there is some type of fighting. I think it was a somewhat primitive world. She was or became an archer.