So the first thing that you have to do is teleport to Old Vanarana Statue of the Seven and head towards the south there you will find 1st pyro and you have to fight and defeat 1st pyro the abyss mage and at the same time, you have to put out the torch.
Then in order to find the pyro 2nd abyss mage, you have to move towards the northwest and again you have to put the torch. Then on your north 3rd pyro is located and you have to find him there and beat him and put the torch.
Now it’s time for the 4th pyro one and in order to get him you have to head towards the southeast and there you will 4th abyss mage and then you have to put the torch there and kill him and move further.
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So we have done with the 4 different pyro and it’s time for the next one the 5th pyro for that you have to move towards the northeast and there you will find 5 abyss mages and you need to defeat him and then put the torch there.
Now we have to kill the 6th one whom we can find on the southeast side from where you are standing and then you have to put the torch and kill him.
And then it’s time for the last one who is located in the south from the current point and there we have to find him and kill him and need to put the torch.
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After that, we need to travel back to Old Vanarana Statue of the Seven and there you will find Pyro Abyss Lector whom you have to defeat but be prepared as this one is quite tough and once you defeat him you will get the chest and your achievement.