A hidey-hole, a climbing tree, and a polka-dot wall. 4B is perfect! So why did they have to leave? For a spunky girl and her cat Suki, 4B is the perfect home. It's full of quirks, keeps all her secrets, and has the best neighbors. But with her family outgrowing the small apartment, she must say goodbye and find a way to make plain, tattletale 816 feel like home. Through its kid-centered lens, Leaving 4B tackles an evergreen topic by exploring the intricate ways a place feels like home: a fresh coat of paint, a new hidey-hole, and--above all--welcoming in old (and new) friends.