The lack of Lore info makes it quite hard to make a decent app.
Basically Darken Rahl is a tyrant and everyone wants to get rid of him but no one has the power. He starts trying to take over the lands and before he succeeds he is killed and he becomes a servant of the Keeper of the Underworld. The keeper and his banelings wage war on the land on the living. The use rifts between the underworld and the normal world to travel. A baneling is someone who dies but the keeper gives a second chance at life if they kill one person for him each day. Darken Rahls faithful servants the Mord-Sith manage to summon Darken Rahls spirit into a new body and he decides to rebel against the Keeper. Now people like Darken Rahl because he is powerful enough to hold back the Keeper. This is were we are today. Thank you for pointing this out I will add a timeline.