Simplify the following text for a Grade 7 native English-speaking person.
Original: The turning point in the war came when Burnham and a young scout named Bonar Armstrong found their way through Matobo Hills to the sacred cave where Mlimo had been hiding .
Simplified: Close to a Matabele village , Burnham and Bonar Armstrong found the cave in Matobo Hills where Mlimo had been hiding .