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Of these three irreplaceable materials, Angel had only heard of the Indestructible Flame Bone of the Dark Gold Nightmare.
The Dark Gold Nightmare is a strange magical creature from the Abyss. In fact, Sanders once fused with the bloodline of the Dark Gold Nightmare, and the original Spell Technique he developed, the Nightmare Substitute, referred indeed to the Dark Gold Nightmare.
For Alchemists, the Indestructible Flame Bone of the Dark Gold Nightmare is also considered a precious Demonic Material. There should be stock in the Wizards' Realm.
But now he had no way to leave the Abyss, so searching for such materials was quite difficult.
Aside from the Indestructible Flame Bone of the Dark Gold Nightmare, Angel had never heard of the other two materials before, but the senior had written down the sources for these materials.
