From MC's perspective:
I began to search the surroundings after taking some rest. But so far I haven't been able to find a clue. When I'm inspecting one side of the cave wall.
I found a narrow opening that leads to some kind of room. Seeing that, I immediately used the spells to widen the gap.
The cave walls crumbled and dropped down leaning behind a large opening. Seeing this I walked inside.
When the lights illuminated the surroundings. Everything becomes clear. It's a run-down secret room. My eyes scanned the walls before my gaze fell in the middle of the room.
My eyes lit up with surprise. A star-shaped pattern can be seen on the ground. In the middle of the drawing, there was an unknown object.
For a moment, I became hesitant. I'm afraid that there would be an unknown restriction in this place. But after getting no warning from the system.