Three days later.
Chen Lin sat quietly on the island, frowning at the Wooden Sword in his hand.
The sword seemed to be nothing extraordinary. Despite all the time he had spent refining it with the Nightmare Realm Treasure-Refining Formula, it had barely reacted.
Yet the faint connection between it and the scabbard truly existed, proving that it was no ordinary wooden sword.
Nor could an ordinary wooden object remain in the sea for years without rotting.
That meant his Treasure-Refining Formula was inadequate.
He considered it for a moment.
Chen Lin switched to the Unnamed Treasure-Refining Formula.
Although this formula had not come from the Nightmare Realm, it used the soul for refinement. Since he had entered with his actual body, he had no trouble using it.
There was only one drawback.
He already possessed the curved saber soul treasure, so refining another would put some strain on his soul.
But there was no helping it. If he needed to use it, he would.
Apart from this formula, all the other Treasure-Refining Formulas he knew were too poor to be of any use.
Having made his decision, he began refining it.
The Wooden Sword was not an eternal treasure and required no formation to assist with its refinement. He could begin directly, but after several attempts, Chen Lin had no choice but to give up.
This Treasure-Refining Formula did not work either.
The Wooden Sword had no artifact spirit, nor could it hold a split soul, let alone merge with one.
He could not even carry out the first step.
But the problem was not with the Treasure-Refining Formula.
Chen Lin knew that even a better Treasure-Refining Formula would be useless. This sword could not be refined with such a formula. It required some other method.
"What could it