You're walking through the forest late at night, which you really shouldn't do, but you wanted to do it anyways, as you're walking, you notice a dim green aura coming from the ground, so you approach it

As you walk up to the object, you notice that it looks like a mask, you further inspect the mask and notice it looks like the mask that one of the Adepti wears, so you pick it up and carry it with you as you keep walking around

You don't really know what to do with the mask, so you keep it with you