Adam believed what Luke said and decided to not venture out into the forest at night but as a human, a seed of doubt and curiosity was planted in his mind. Doubt to check whether the rumors are even true or just myths, as well as curiosity about what is hidden beyond the veil of night that gave rise to such rumors.
Adam knew that after Luke had some reason to not go out in the night but that doesn't mean he can't. He had the free will of his own to do whatever he wanted and however, he wanted. Such thoughts came into Adam's mind and he decided that he would once visit the forest at night when Luke was not with him. Not knowing that this decision will bring troubles to Luke in the near future.
"Get up! What are you waiting for?" said Luke as he muttered, "Allocate 5 points in Stamina". His Stamina Bar rose permanently, giving him the stamina to stand and wander into the deep cave to collect the treasures (Loot) he worked for all this time.
