Well, basically it's about the growth of the Damned One - from childhood to youth - and how it came that the followers of the Black Ring invaded Nemisis.
If you open your eyes and use a sharp mind, then you can deduce many things from the dialogues and books found within <img src="/ubbthreads/images/graemlins/beyond.gif" alt="" /> , also the Official Strategy Guide is handy for this.
Alrik.