Teacher Xia: "You want to parachute me in?"
Dahuang: "Yes, that Lich is so cautious, who knows what strange things are hidden there. Even if you get discovered, if things go south, you can activate your Cloak to mitigate the damage and then drop down. If worst comes to worst, you could simply twist off your head and throw it out. Even if you get sucked into a Rift, you still have a higher chance of surviving than we do, and the brothers will immediately go find Heine to rescue you."
The other two immediately saw the logic in this.
They had been to the Netherworld before, although it was after the official opening of the Nether Portal.
In addition to the omnipresent hostile creatures, the threats to players in that place included a flesh-corroding aura and the inability to obtain effective supplies.
The former was like cutting meat with a dull knife; the latter damaged their endurance.