What he saw as the princess of Etheria led the way was a preserved monster's heart, but it was still beating as a green light was emanating from it, though it was dim. The heart looked like a hardened core because it came from a golem that was slain in the SS+ Rank Peak Dungeon Tower, which could be cleared with an average duration of thirty-six weeks.
Although, for some reason, it's considered an artifact. Russell read its description, making sure that it was the same as one of the Easter Eggs he had written about in his unpublished novel, which checked out as he read the description that the museum staff had given it.
The first one was the Seed of Chaos, which turned out to be incredibly important because of the underlying mysteries that were surrounding it. Although this artifact's function was significantly lesser compared to the benefits of the consumable Seed of Chaos, it's considered a great prize for being an Easter Egg.
