The past

It was Alice Harper's first day of 10th grade when she realized that she could go back into the past.

The first time it happens she ends up in the year 1920. Surrounded by a bunch of people wondering the same thing she is (what is she doing there?
Alice is hoping they can tell her how she was transported into time, but the thing is they can't because the very few people that have been transported their have never been able to go back home, well that is everyone accept one person and his name is Adam.