Tanglewood

Tanglewood (あやかしの森 Suspicious Forest) is a dark forest directly northeast of Goma Plateau, situated between it and the mountain that contains the Abandoned Mine. It has a negative reputation that comes about from being permeated by equally negative energy. It is said to transform at night, changing it into a wood that ensnares those brave - or foolish - enough to enter it at the dark. It, along with Goma Plateau before it and Abandoned Mine after it, comprises the first three-part introductory dungeon to Golden Sun: Dark Dawn.

Matthew, Karis, Isaac, and Garet must traverse the Tanglewood in order to reach Tyrell in the Abandoned Mine, and much is said about how it seems much more dangerous now than before. Various giant flowers stemming from the boss inside the mines obstruct their path, and after Garet demonstrates how to do so, Matthew uses the Fireball Psynergy to clear away several blooms and the roots they connect to.

It is one of the earliest revealed locations for Dark Dawn, having been seen as far back as the E3 2009 trailer.

Introduction
Once you enter Tanglewood, there will be more introductory lessons from Flint, Isaac's very first Djinni, about using Djinn. When that tutorial is over, Isaac and Garet will lend some of their Djinn for you to use.

Garet then argues that he does not believe Matthew to be a suitable leader and gives a small history lesson about leading from 30 years ago.

Walkthrough
Afterwards, head to the right as the left path is blocked. On the right you can either take the left path or the right path. Well, the left path leads to a dead end, so go right and get next to the water. Leap on the rocks to the left to reach a chest with a Herb in it. Go back to the semi-L rock and head up this time to reach another section of the forest. Head down the linear path towards the exit on the right. Grab the Bramble Seed from the chest here. As you can tell, there is no exit this way either.

Thankfully Garet notices the problem. You'll get to see a scene showing you how to get rid of the forest's roots: by shooting the flowers with a Fireball. Now that we know the secret to the forest, let's continue.

This next area is a maze of sorts, but it's not too hard. Go up the first set of steps here and back down to the south. Go all the way east and take the second south here (take note of the small plant moving around to your north). This is actually a linear path that winds around to the south-eastern area, so wind your way over there. Here, get on the green path and make your way to the left so you can fry the flower with a Fireball. Go around to the left and get on the platform. Now you can use the "walls" of the maze to jump around on. Head towards that plant from earlier and use the walls to walk down to it.

Use the Psynergy Growth on it so you can climb it. Now you can cast Fireball on another flower. With those roots gone, you can finally get to the northern exit. Here, push the rock columns into the water so you can use them as stepping stones. You can also reach the chest to the right for an Elixir as well doing this.

Now use the roots to jump your way to the north. Use your Move psynergy to move the rock column south into the water and make another stepping stone. Then use Growth on the plant to climb upwards. You'll find the soarwing nearby, broken. Continue onto the cave.

Collectibles
Herb Bramble Seed Elixir

Trivia

 * On their first time playing Dark Dawn, most players are likely to view the cutscene where Isaac and Garet show Matthew how to burn down the roots blocking their path. However, if players burn the roots away before the cutscene can start, a different cutscene plays.