Complex sentence: Aleph with the intent to take the Elemental Stars for themselves, but fail to solve the riddles guarding them and are driven away by the mountain's trap, a magically generated thunderstorm and rock slide.
Split into simpler sentences: Aleph with the intent to take the Elemental Stars for themselves. They fail to solve the riddles guarding the stars and are driven away by the mountain's trap, a magically generated thunderstorm and rock slide.