Is There Really Another Mary, Charlie Brown?

Here's the Peanuts story I published on 24 February 2023. Linus gets a letter from a girl named Mary, and Heather and her best friend Mary Stewart wonder who this other Mary could be. Peanuts is not mine, and neither is Mary Stewart. Mary Stewart belongs to HeatherLovesCB. Though Tommy Halverson, Henry Wold and Wally Brown are mine.