Dear creepy friend (Horror Story)

When I was younger I had lived close to my school four minutes away to be exact so I was never late. One day I walked into my classroom and put my backpack on the back of my chair a few minutes later a new girl walked in (I’m gonna call her B) and my teacher sat her down at the table me and my friends were sitting at. She introduced herself and she said she was shy which was shocking because she was talking openly and barely gave me and my friends a chance to talk. A few days later my friends were out of the classroom doing errands for the teacher B had said something completely strange and I’ll never forget these words she said I know where you and the others live I couldn’t tell if she was kidding but I’m sure she wasn’t as she wasn’t laughing and she just had a blank expression off her face the teacher received a phone call from another teacher saying my five friends were lost and in her classroom thankfully the teacher said told me to go help them when we arrived B was gone and the teacher said she had gotten dismissed because she was moving. She moved away and hasn’t come back ever but I swore I saw her recently