Different (a downton abbey fan fic)

Mary is a young girl in the 1900s she has to deal with an over protective grand-mother who chases away any boy that she dare glimpse at. The fact that her parents are dead and the only relatives she has left are her two sisters (Edith & Syble) and her grand-mother is not helping. She has always assumed that her parents had died in a car accident but as time wears on she begins to uncover hidden clues that may lead her to challenge what she first thought. One day she is visiting her aunt when she recieves the terrible news that the rest of her family is dead, the cause is unknown but she knows that its no coincidence. That minuet, she makes it her goal in life to uncover this murderer and avenge her family. When she finally meets a man who claims to be her great-uncle she uncovers the truth about her family's death. This is the average downton abbey but with a big twist! Read on, IF YOU DARE! Dun dun dun *dramatic music*