To decipher the rhythm of the Forbidden Forest, you must first rotate the stone pillar outside. The switch is on it. You have to open the map on the other side before you can go up. Once the stone pillar is rotated, you can tune the notes. You can adjust the music yourself, or you can adjust it according to a book next to the latest save point, and then pull the lever next to it to unlock the road to the final BOSS of the Forbidden Forest.
1. First, let the outer stone pillars rotate.
2. The door here is locked. We have to get through the map on the other side to get up, and then pull the lever to turn it.
3. You can listen to the music by yourself, or adjust according to the order in the book next to the latest save point. (Write the order directly below)
This is the adjustment sequence shown next to the most recent save point.
4. Pull the lever next to it.
5. The road to the Forbidden Forest will rise from the water.
After we unlock the road, a changed tone will appear, and we can perform a second decryption to obtain an achievement and a hidden weapon Momentum Drive