The ringing sound in his head wasn't the only thing Noa had heard.
When the floor crack expanded, it also made weird noises, as if notifying him and the others that something interesting was emerging.
'It's like quest completion music from video games,' Noa thought.
He then remembered spending countless hours grinding in his favorite video games and hoping for a rare drop.
After that, he glanced at the system message.
[You have defeated 1 out of 2 bosses of the tomb]
[You get a special chest for every victory]
[The end of the path is near]
[Ashes of the dead dragon await you]
Seeing this, Noa blinked a couple of times, readying himself for the chest and the road ahead.
Then he looked back at the floor.
It had already stopped vibrating and now revealed a crude stone altar rising from within.
"Is that our reward?" Thalia questioned.
She approached the chest, expecting to receive something better than the last one.
Noa nodded.