They were going against an army of thousands if sodiers at their disposal. Elliot and the Adventurers were only a fraction of the number of people DuDu and Licht have, not to mention the ones Malice might send.
Elliot was teamed up with Connor, Kaminari, and Daniel as they try to look for Emma, the Ruby Maiden. The maiden's location was still unknown, but the Adventurers from below the mountain explored the island.
The island where the mountain that had the Ruby Maiden's chamber was had a small forest. There were traces of a giant bird's feathers in some of the trees which was odd because there weren't any other creatures in the island.
One Adventurer also found a red hair that was attached to the feather. This was even more odd than the feather. They traveled to the path where the feather was and it led them to a small piece of paper.