Although Tianlan is not an official Invoker, this is clearly a bad omen, forcing Fang Hong to consider ending the adventure early and finding a safe place for the team to rest and revive.
His original plan was to go to Dulun for supplies and to gather information—a city that was one of the largest in the south of the Great Canyon, bustling with trade—at least before the north-south passage was blocked. Therefore, finding a place to land wouldn't be difficult.
However, after the battle with the people of Ragnarok, this plan became somewhat inappropriate. Although the other side may not recognize the faces of every one of them, Mr. Greyrock is such a huge target that failing to recognize him would be too much.
Fortunately, in the hills and forests north of Dulun, it is easy enough to hide a Gey Ridge Burden Beast and their gigantic platform. Once they leave the Ash Woods, there is no more danger in the wild—at most, some wildlife that poses no threat to the Adventure Group.