Dream Of Finding A Wallet In A River

I had a dream where I went to my local river on a sunny day and I saw some textbooks. So me and another woman decided we'd look through them and put them into the river to decompose. While we're looking, we're both fascinated by the realization that someone out there has written in them. Then another lady comes and she looks through the textbooks too but she finds a wallet. Her child is touching the wallet and searching through it. I see there's a lot of money in it. I tell her that she should return the wallet. I see a card with a name and a face. Then the old man who owned the wallet was in front of me looking into the river. I tell the lady to give it back but then she says she doesn't have it. I immediately jump to the conclusion that she wants to steal it. I tell the man to look at all the things she has and tell me if he sees his wallet, she does a 360 and we can't find it