Basement Carpet Basement Carpet Worth Lifting To See Whats Under It?

Basement carpet worth lifting to see whats under it? - basement carpet

I have passed in this house for a few years, and I in my room, I have a cupboard in the corner. However, I have recently moved, and it is a place to ring in the carpet that sounds like the wood on an open area hollow.

Now is the control of a cellar, so it must be concrete, someone knows if this is something? Or just a leak or some kind of thing?

Thank you.