C699 Borrowing a knife to kill someone

In the vast mountain forest, the mountain ranges rose and fell. At the foot of the mountain, a cave could be vaguely seen.

There were a lot of stones outside the cave. Although they were scattered in the grass, it was still possible to tell that the rocks had just been cut off from the walls of the cave. Strangely, there were no powerful formations outside the cave, only a few small ones