Added in patch 2.2, Tsurumi Island holds many secrets. One of them is several riddles with torches in the ruins of Sirikoro Peak. In this guide, you will learn how to solve all three puzzles.
First puzzle
The first puzzle can be found on the left before entering the main room in the ruins. There are six torches on the wall here, but you only need to light four of them in the correct order. The best way to do this is by using Ember or Eimia.
Second puzzle
When you enter the spacious main room, you will find the second torch puzzle on the left in the adjoining room. The torch you must light first is in the far left corner. Then you just need to light the two torches on the right.
Third puzzle
The final puzzle can be found in the next room from the main hall directly ahead. First you have to use the Strange Feather on the right side to make the torches appear on the wall. Then follow the order shown in the screenshot.
For each puzzle you solve, you will receive a treasure chest. Also, the achievement "Guess" will be unlocked, which will give several source stones.