The path from this rear mountain into the Earth-Core Sword Pool was extremely narrow, narrow enough to be called a winding sheep's trail. So as soon as I reached the entrance, I used the Flower of Boundary Force to draw Great White Marsh and Bai Suxian inside, then broke in directly through a higher dimension.
Along the way, layers of defensive formations appeared before us one after another, like steps rising higher and higher. However, the Flower of Boundary Force was, after all, a treasure belonging to a higher dimension. Once it slipped into another dimension, nothing from the previous dimension could possibly stop it—not even the formations. Thus, before long, we had broken through several barriers in succession and soon arrived at a place filled everywhere with molten lava, like an underground lake of fire.
Everyone knew that a Sword Pool was a treasure vault for any sect, and the Sword Pool of Cold Immortal Mountain was even more so. After accumulating over so many years, the sword artifacts were probably piled everywhere.
"We're here. This is one of the Sword Pools in the rear mountain of Cold Immortal Mountain. Countless treasured swords are displayed on the seabed. They've been soaking in essence day and night. Some have lain dormant below for several thousand years, and some have even been here for only a few years." The old woman spoke with a chuckle.
Looking at the lake of fire, which was several football fields in size, I wasn't surprised. I was merely curious: if treasured swords were tossed in there and nurtured for several thousand years, wouldn't they be damaged? Wouldn't they even melt? That was molten lava, after all!
I thought for a moment, then suddenly said, "I heard from Xiao Jianlan that the number-one treasured sword on