"This path is above the Azure Sky Domain, riding migratory birds."
You Rui did not try to keep him in suspense, speaking candidly, "There is a class of spiritual creatures in this realm called 'Carefree'. Legend has it that they carry the Kunpeng bloodline mentioned by Master Nanhua—'stretching the clouds and bearing the green heaven'. These birds travel in flocks of three or five, heading south from the Northern Darkness Sea toward the East Heavenly Pillar, fiercely striking the 'Heavenly Waterfall'. In legend, out of countless 'Carefree', a single bird may borrow the power of the heavenly pillar to transform into the divine object of the Kunpeng. Since ancient times, though there has never been any heard precedent of success, observing their migration route, they must pass through the Northern Wilds, entering the East Sea from the estuary of the Cang River."
Yu Ci pondered in silence.
You Rui continued, "The flight speed of this bird can reach one hundred and eight thousand miles in a single day, already attaining the ultimate in flight and evasion in this realm. At certain moments, it even possesses the ability to shuttle through the void. Therefore, though its route is roughly fixed, it is as unpredictable as gods and ghosts. Its actual speed exceeds more than ten times over, ranking among avian divine birds only below a few limited categories such as the 'Dijiang'. This place is about twenty million miles away from the Cang River estuary. If everything goes smoothly, twenty days should suffice to arrive."
Yu Ci asked in astonishment, "Carefree Birds? Since the flight speed of these creatures has reached the ultimate of this realm and they possess the ability to shuttle through the void, killing them is already not easy, let alone riding upon them?"
"This is one of