Within the Cave Mansion.
Aaron sat cross-legged, silently comprehending the "Bloodthirsty Strange Book," a secret record of Demon Cultivation.
In this world, the Demon Gate has Nine Great Heavenly Demon inheritances, seventy-two heretics, and three hundred separate transmissions... The "Bloodthirsty Strange Book" is merely one of the three hundred separate transmissions from the 'Hundred Birds Temple.' It's truly not considered top-notch.
Even among Demonic Skills, it ranks as third-rate!
To practice this skill set, one must use the Heavenly Demon Secret Spell to sacrifice forty-nine different species of bats and then feed them with one's own flesh and blood to ensure a telepathic bond.
When the time is right, the practitioner must devour all these bats and then bury themselves in a dark, sunless cave for seven days and nights, during which they must not hear any thunder.
