"Sure enough, staying out of the light lets me remain invisible for three hours."
Yang Yi checked the outfit's effects and the duration of its invisibility as he kept sliding down the tunnel.
The place really was quite deep. Only the upper section bore signs of digging; farther down, the walls became solid ice, with reinforcing structures in places. It was clearly an artificial passage, with a fairly gentle slope spiraling downward and an expanded platform at regular intervals.
"So deep."
Yang Yi marveled inwardly, admiring the ingenuity of these people, who had actually built such extensive structures beneath the ice.
It made sense. With the temperature outside so low and blizzards sweeping through from time to time, sheltering inside the ice was actually better for survival. He just wasn't sure how they had solved the oxygen supply problem.
Several minutes later, Yang Yi was sliding faster and faster as he lay on the ice.
He himself didn't mind, but it was actually getting a little dangerous.
Suddenly, he sat up, noticing another platform off to one side. Quite a few sleds were parked there, including the siblings'. They had just gotten off and were moving the enormous apple.
Yang Yi was about to act, but immediately realized something was wrong. He had forgotten to slow down. If he rashly pushed off and rushed over, the noise...
After a brief hesitation, he missed his chance to turn off and continued downward.
Meanwhile, as expected, the siblings were being hassled by the guards. That enormous apple was simply too conspicuous, and the guards had never seen one either.
Just as the siblings were trying to bribe them, a deafening crash rang out from below.
BOOM!!!!!
"What happened? Did another block of ice slide down?"
"Go check!"
The guards were all