Simplify the following text for a Grade 6 native English-speaking person.
Original: They decide to go to the Varden to fight Galbatorix , with Murtagh who does not want to go , but will help them until they reach the Varden , but they do not know where the Varden are .
Simplified: Arya is able to give directions to the exact location of the Varden : a city called Tronjheim , which sits in the mountain Farthen DÃ '' r. She also adds that they have only four days to reach the Varden or she will die . The group go in search of the Varden , both to save Arya 's life and to escape Galbatorix 's wrath .