Complex sentence: The protagonist resurrects the soul of the traitor Horadrim, Zoltun Kulle, in order to recover the Black Soulstone, who reveals that it is hidden in his archives.
Split into simpler sentences: The protagonist resurrects the soul of the traitor Horadrim, Zoltun Kulle, in order to recover the Black Soulstone. Kulle reveals that it is hidden in his archives.