Piece of the box

Hm… Look. Can you help me for a moment? It's just that there is a bit of a complicated problem related to trade. Several of the merchants that left Ascundeback Village just arrived at Tor Fortress. But they lost most of their goods, and those who were travelling with them. Plus, everyone has been hurt seriously. Right now, pharmacist Tylon is looking after them, but I heard a bit of a concerning story from them. While they were passing the Fallen Hills after leaving Ascundeback Village, big rocks were falling. But it has been a very long time since there has been any landslide there. It's been so quiet, that the name Fallen Hills became a relic of the past. But many rocks fell in that place, and the fact that those boulders fell exactly on the merchants makes it seem that there is something dubious about it. So I want to do some investigation. Can you help me? Good. Perhaps because adventurers are perceptive, you know what I mean. I'm sure that the falling rocks were deliberately created by some monsters. But it's still too early to say. I need a definite proof. And there is something you need to get for me in order to find that proof. Bring back Broken Pieces of the Cargo Box from the Fallen Hills that's if the pieces of the cargo are still there. May there be spirit's revenge on those who turn their backs on you.

Can you hurry? Bring back Broken Pieces of the Cargo Box from the Fallen Hills. May there be spirit's revenge to those who turn their backs on you.

These are the cargo pieces but it's strange. It looks like it's broken by something sharp rather than by rocks. Can you wait a moment? There is something suspicious here.