After watching a movie about a detective on the television, Bean decides to set up shop as a private investigator--and she and Ivy start looking for mysteries to solve.

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.

"Nada más verse, Eva y Beba se caen fatal. Pero cuando Beba le gasta a una broma a su hermana y tiene que acabar escondiéndose de ella (¡y rápido!), Eva corre a rescatarla con su varita mágica, con un poco de pintura de cara y con un cubo lleno de lombrices... ¿Acabarán Eva y Beba metidas en un lío? Puede. ¿Se lo pasarán bien juntas? ¡Por supuesto!"--