An Arrogant Idiot

In the middle of a dense forest filled with gigantic trees, a giant walked out from a light portal before the portal behind him vanished with a flash. 

Jacob was startled as he smelled the affluent air around him, which was somewhat intoxicating, and when he looked behind, the portal was gone entirely, making him frown. 

Then he looked around him and saw hundreds of meters tall, towering brown trees giving the air of ancientness, and he was standing on a vein-covered ground without any trace of soil. 

Furthermore, the crown of the trees covered the entire sky, and it was pretty dark. Jacob felt ill at ease despite no enemy in sight. 

'Where did it send me? Another section of the trial plain? Is it even possible?' Thought Jacob with uncertainty, 'But if it's valid, then all I need to do is to search for another landmark like the Ice Mountain and the pyramid. Furthermore, now that I think about it, I have seen a tree in the mural...'