Complex sentence: Cholly follows and notices something else, a slip of paper he discovered which Darius wrote, the note shows that Darius intends to eliminate the one obstacle getting in between him and his inheritance, Pierre.
Split into simpler sentences: Cholly follows and notices something else, a slip of paper he discovered, which Darius wrote. The note shows that Darius intends to eliminate the one obstacle getting in between him and his inheritance, Pierre.