After a while, they managed to kill the rest of the demons.
Of course, the group immediately entered the cave after that. They could clean up the battlefield after making sure there were no more demons around.
Since Noel was the only one who had the Moon Blessing, he became their guide. Aside from the Moon Blessing, Noel also took advantage of the Demon Hunter Medal, trying to find demons that hid behind the wall or underground.
The others didn't seem to have a problem walking in the dark either. They relied on their Spiritual Energy to measure the size of the cave and used their instinct to predict each other's movement. This was useful in a fight as well.
During that time, Jonathan kept observing Noel to confirm his suspicion.