In the sixth entry in the New York Times—bestselling series, two best friends learn about ballet, promises, and how to be a squid. Finally! After months of begging their parents for ballet lessons, Ivy and Bean finally get what they want... well, not exactly. Much to their surprise, it turns out ballet lessons do not cover karate chops and roundhouse kicks. The girls have no interest in learning how to dance gracefully, but they promised their...

Second-graders Ivy and Bean set out to expel the ghost who is living in the girls' bathroom at their school.

When classmate Vanessa insists that all single children are spoiled, Ivy wonders whether she can become "unspoiled" by giving away all her clothes at school (which does not go over well with her teacher or parents)--but ultimately decides that all she needs to accomplish her goal is a little sister.