Demonic Book
In ages far more ancient, the land known as the Beast Bone Field had once been called the Strange Beast Dungeon.
It stood alongside the renowned Dragon Cliff Dungeon and the unfathomably mysterious Ancestral Tomb as one of the three great legendary dungeons within the Empire.
What set it apart from other dungeons was its dizzying variety of bizarre Monsters.
Their forms varied wildly, their abilities were strange and unpredictable, and it was almost impossible to find two completely identical individuals. They were utterly different from the Monster populations of the outside world.
Yet in the end, this miraculous dungeon had completely collapsed because of an unknown catastrophe.
Its vast internal spatial structure caved in, overlapping with the rock layers and soil that had originally been "pushed aside" by the dungeon space and now snapped back into place.
In that all-consuming spatial collapse, the relatively fragile strange beasts were crushed into powder. Only those with sturdy bodily structures, or individuals with special talents, had bones that survived the torrent of destruction and were buried deep beneath the strata.
Among them, most of the remains preserved were the bones of giant beasts, and this place was therefore renamed the Beast Bone Field.
Because these strange beast remains were one of a kind and no longer obtainable, they contained peculiar properties that materials from outside-world Monsters did not possess.
Many bones, teeth, horns, or crystallized organs were indispensable precious materials for concocting certain high-grade potions, performing ancient rituals, or forging special magic items.
The value of the bone field had once even surpassed that of a rich Magic Crystal vein.
However, two hundred years of uninterrupted exploration and excavation had long since exhausted the legacy of the surface and shallow layers.
Now, this was no longer the dreamland where one