@ShanShen So I had a little investigate (by which I mean sleeping) and I have some good news and some bad news about your land

The bad news is that you aren't sitting on some amazing lost treasure or sunken temple; but the good news is I found an odd coin, a few pages from an old book, a large shard of a coffee cup, and a key to the wrong door.

https://a.weirder.earth/media/wLwxs85RR1QMxibWpuc
https://a.weirder.earth/media/UxlIejiGMmu3Yc7JO60