"If you're lucky, he might be able to find a very simple way to enter. He'll let all of you enter Yanan and take all the rewards."
...
On the other side, Lin Ye immediately started forming a party and pulled Su Mumu into his own world. He then copied the method he used when he helped Su Mumu with the map, riding the fire Dragon Stryde and taking a shortcut all the way to the enemy.
Furthermore...
Since the number of teammates in his party would not affect the number of Bloodsouls given by the monster, and everyone would get their original share,
It would only increase the difficulty of conquering the dungeon.
Therefore, little Mumu's army of spirit souls was also summoned by her. They swept along the Hive-like streets of the castle and transformed the creatures of the secret realm along the way into Bloodsouls.