Complex sentence: The Zhentarim have built the Tower of Void in these ruins to take over the Dale and players will have to enter the mines and find the Tower of Void to kill Rezlus and stop the Zhentarim operations.
Split into simpler sentences: The Zhentarim have built the Tower of Void in these ruins. To take over the Dale, players will have to enter the mines, find the Tower of Void, kill Rezlus, and stop the Zhentarim operations.