Sherlock Holmes Mystery Puzzle 1000pc

This is not your standard jigsaw puzzle.  Read about the surprise visit of Helen Stoner to the offices of Sherlock Holmes and the mysterious death of her twin sister behind the heavy iron gates of Stoke Moran Manor House.
 
Next, assemble the 1000 piece puzzle to discover the hidden clues. Then solve "Sherlock Holmes and the Speckled Band" by piecing together clues from the story and puzzle. The challenge? There is NO reference picture to go by!