The Forest of Being Eaten Alive by Trees is a new area in Tiny Tina's Assault on Dragon Keep DLC
Old Glenn the Blacksmith's Cottage (via side path)
This forest is a vile, vile, and dark, evil place. If you are not careful, and even if you are, you are going to end up being eaten alive by trees.
You will then miss the boringness of the Forest of Tranquility