The officers under An Tianzuo made a few more tries, but the outcome was the same every time. No matter what kind of Companion Beast it was—regardless of its attributes or type—as long as it approached the River of Forgetfulness's smoke, it would immediately plummet into the river without a trace. It wouldn't even cause a ripple.
It was useless for the Companion Beasts to attack the River of Forgetfulness. They all vanished the moment they entered the river. It was unknown how deep the River of Forgetfulness was.
It was impossible to even enter the River of Forgetfulness, much less search for the Three-Lives Stone in the river.
Zhou Wen and Li Xuan also summoned some low-level Companion Beasts and made them attempt to approach the River of Forgetfulness. However, just like An Tianzuo and company's attempts, no Companion Beast could survive in the River of Forgetfulness.
