When Sadie Parker stumbles upon a mysterious hole in the wall of a forbidden room, she discovers a hidden world brimming with magical, playful creatures known as the Marshmallow Kids. In this enchanting realm, Sadie finds solace from her troubles and makes new friends who cherish her lost toys and special memories. As she explores this whimsical land, Sadie learns the importance of sharing and friendship. But when she returns to her everyday life, she is faced with a choice: keep her secret or share the joy of her newfound friends with others. With a heart full of wonder and memories, Sadie finds a way to connect with a new friend who moves into her old house, passing on the magic she experienced. The Marshmallow Kids is a heart-warming tale of imagination, kindness, and the enduring power of childhood dreams.