It was dark out there, too. The ground was rocky and largely barren; there were distant fields of tall, dying grass all around. There was no main light source—he cast a lumos and saw the place went on for miles and miles,  and he could see that somehow he'd come to a cavernous area, that no natural light existed here, and the ceilings were so high off he couldn’t fathom this place’s scale. The little light that did infiltrate that darkness, he couldn’t tell its origin. It simply existed there on its own energy, and somehow it was enough to illuminate the place just enough to make out his surroundings.