Inside the room.
Hearing what seemed to be a clang from outside, Lu Sheng's voice paused, and she instinctively furrowed her brow.
"Wait a moment, Grandpa, there seems to be someone outside. I'll go take a look."
As she spoke, Lu Sheng got up and headed towards the door, only then noticing that the door had been left ajar—it hadn't been properly closed before.
But when she went out, there was no one there.
Lu Sheng thought she might have been overthinking it.
Just as she was about to turn around and go back to her room, she noticed what seemed to be a water stain near the trash can not far away, dampening a patch of the dark red carpet.
She walked over and saw a bowl in the trash can, containing some remnants of what looked like a ginseng soup.
Touching it with her hand, she found the bowl was still warm.
Had someone brought ginseng soup over just now, but instead of entering, they threw it away outside the door, bowl and all?