Ann came home with Mary Jane that first afternoon and Mrs. Merrill discovered that her name was Ann Ellis and that she lived two blocks from their own home and that the two little girls would no doubt find it very easy to be friends. They began having a good time that very afternoon and they planned still better times when Betty would be back and they could all play together. Now wasn't that fine! Mary Jane found that she liked school every bit as much as she had thought she would. She liked her teacher, a charming Miss Treavor, and she liked her studies. But most of all she liked the fun she had on the playground. In the big cities, like Chicago, where lots of girls and boys have no yards, the school yards are the only places were children can play. So, to make everything safe and orderly, the school folks have a playground teacher stay at school all the day, to help in the games and to see that every one has a happy time. The playground teacher at Mary Jane's school liked little girls very much and she knew many good games for them to play. So in addition to "London Bridge" and "Drop the Handkerchief" and "Tag" that all children play, Mary Jane learned "Roman Soldiers" and "Ghost Walk" and "Three times Three." Of the new ones, Mary Jane liked "Ghost Walk" the best. To play it, the girls and boys made a big circle, then they selected some one to be "Ghost." This person stood in the middle of the circle and everybody shut eyes tight, very tight. Then the Ghost, while every one kept very quiet, tried to tip-toe to the edge of the circle, slip out between two folks and get away without being caught. That may sound easy, but played in a yard full of romping boys and girls, it is not really as easy as it might seem and it was lots of fun, because often folks would think the "Ghost" was near them and would try to grab--and the joke was on them because all the while, maybe, the "ghost" was in another part of the ring. And whenever folks thought they caught the "Ghost" and _didn't_, then every one opened their eyes, the person who had made the mistake had to get out of the circle and the game began again. But if the "Ghost" really did get out of the circle without being caught, then the "Ghost" could hide anywhere in the yard and the game became an old-fashioned hide-and-seek with everybody hunting one lucky person.