This story was quite original and a times a tad confusing, but I really enjoyed it. I found it to be both sad and incredibly thought provoking. The author has created this interesting world where the valley to either side holds the same world 20 years earlier or later. Managing such a society, where someone can change the present if they were allowed to go back, results in a complex set of morality issues. This story will stay with me. 4/5 stars!