Task: Question Generation
Input (English): Context: He continued . " Well , after many years I gave up the search and went back to Middle Earth thinking you might have somehow turned up there again . I was wrong , and there was something else I discovered that needed my assistance even more than your absence . An evil greater than Sauron has been plaguing Middle Earth , but he found his way here and has been working hard to return to Middle Earth , but while he is here , he is in human form .
Output (English): What may have been your reason for returning to Middle Earth .?