It would be an undoubtedly foolish decision for tens of thousands of troops to cross the Infernal Spirit Continent to the Arctic Tundra without the guide of the Stigmata Sorcerer.
Grimm, for one, would not have made such a stupid decision.
Regardless of whether they had to make a detour across oceans after oceans or to challenge their way through the strange and treacherous lands that were even feared by the Acraepoids, it was definitely a much better option than going through the hostile Infernal Spirit Continent brazenly.
Six months later.
No matter how prudently Grimm managed his team and their route, half a month ago, a few Demon-Hunters perished as they crossed the sea where the sea dragonfly inhabited.
It was a critical situation at the time, and he did the best he could.
Certain parts of the Natural Laws and unique biological evolution of this world were different from the Sorcerer World.