The facts had proven that Lu Qing's idea was feasible. Li Yanling transformed into a cloud and headed north. She did not encounter much trouble.
As for Lu Qing himself, he kept a distance from Li Yanling for an entire day as he scouted the area ahead.
If a powerful demon that was stronger than the White ghost emperor or equivalent to a nascent soul cultivator appeared, he would definitely warn Li Yanling to not come any closer. When she activated the celestial cloud top posture, she could perfectly avoid the detection of jiedan stage opponents, but it was hard to say if she reached the Yuanying stage.
He had to try his best to ensure this.
