Carol knew the reason had to lie with Shane.
Otherwise, why would the fairies be so close to him? And why would his magic power and aura be so akin to nature?
Such a condition, as far as Carol knew, could only be attributed to one possibility.
That is — "Blessing of the Nature Goddess."
Yes.
Once someone received the Blessing of the Nature Goddess, they would be protected by nature and favored by it.
Therefore, the bearer of this blessing would emit a magic power and aura very close to nature, endearing them to both elves and fairies.
But logically speaking, humans could not possibly receive the Blessing of the Nature Goddess.
The Goddess of Fate, Life Goddess, and Nature Goddess each governed their realms, guiding different Races and bestowing their blessings generally only within those they oversaw.
Hence, only members of the Elf Clan and Dwarf Clan could receive the Blessing of the Nature Goddess; humans and beastmen were not eligible.
Unless...
(He's a Hero.)