Curtis

In "Curtis: Kelly’s Imaginary Brother Who Lived Under the House," Kelly, the second daughter of the Vardiman family, invents an imaginary older brother named Curtis to combat her loneliness after her sister starts kindergarten. Curtis becomes a secret friend and leader for Kelly and her siblings, engaging them in various adventures while remaining unknown to the adults in the household. As the family expands, Curtis's role as a playmate grows, providing companionship and escapades for the children.