Weiss used her sword to pick up the bag and then used the ancient force to open it. There was no locking mechanism stopping her, so she was able to open it quite easily.
Inside, she found the skull of a beast. Weiss had studied animal skeletal structure quite a bit so she was knowledgeable in this field. But even with her knowledge she was unable to guess about the exact origin of this skull.
There were so many bizzare beasts, monsters and even mutations in this world that Weiss was not surprised that this skull was unknown to her. But still, it was definitely a very interesting research subject for her.
But obviously this unknown skull was not the valuable thing that these knight apprentices were fighting for. Instead their target was the thing which was stored in the middle of the skull.
This thing was a black orb of unknown origin. Weiss immediately send some of her ancient force into it instead of directly touching it.
