Old letter sets off strange mystery Mar 25, 2010 10:04:23 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by breakmydreams on Mar 25, 2010 10:04:23 GMT -5 Old letter sets off strange mysteryA 76-year-old Valentine's arrival was the first clue in a case that is intriguing a college campus. Unexplained twistsOddly overdue bookNational Postal MuseumTweets try to find woman