Finally the sisters accomplished their goal, though when they did, they found little difference between the worlds in and outside of the valley. Regardless, they were struck by the splendor of the new world. So they pledged to venture even further, to keep journeying and seeking ever stranger and more wonderful things. No matter how great the obstacle they faced, they knew they could overcome it as long as they were together.
"To have high hopes of something" is an idiomatic phrase. It means "to expect the best" or "to hope for success".
Artwork by Evan Lee.