The pond full of coins By Karen

Hello Anne!!
I haven't written to you for a long time, but today I have a strange story I want to tell you! I was in my beautiful red dress and I was walking on the pavement. I was on my way to my house,suddenly I saw a bridge that looked like a ladder over a small pond. Inside the pond there where lots of coins inside!! I quickly searched for my purse and threw in a 20c coin  and went over the bridge.The next day when  I came across the bridge my 20c coin wasn't sinking.... why is this?