The ability to make people forget their past and begin a new life was either a completely unfounded rumor or a secret method that even Iroh had never heard of.
Aside from those possibilities, the most likely explanation was a deity.
As the oldest and most powerful race in the world, deities possessed countless strange and varied abilities, far beyond anything the five bending arts humans could master could compare to.
Moreover, according to ancient records, aside from spiritbending, even the Four Bending Arts had been bestowed upon humanity by the ancient deities who sheltered them.
Back to the matter at hand.
The unexpected involvement of a deity suddenly filled the investigation into Forgetfulness Valley with uncertainties and made Kahn cautious.
With his current strength, he could confidently call beasts, magical animals, or Firebenders a minor problem, but acting that arrogant before a deity would be courting death.
He still remembered The Avatar Chronicles, which he had read before. It was a history book recounting the experiences of successive Avatars, very thick, but also very interesting to him.
The book had described one particular Avatar whose wife's face had been stolen by a deity, while he himself had escaped unharmed. Afterward, that Avatar spent his entire life searching for the deity, hoping to reclaim his wife's face, but ultimately failed.
It was a terribly tragic story, but it also served as a warning to Kahn.
Even the Avatar, the strongest among humans, sometimes found himself powerless before deities, so Kahn naturally dared not grow arrogant. It also told him that deities were not all kind, and he had to be doubly careful.
With that cautious mindset, Kahn did not immediately set off for Forgetfulness Valley after waking the next day. Instead, he asked Nolen's family about its legends, hoping to