Katie can\'t wait for the school science fair.
What a disaster How will Katie eek her way out of this one?.
When she turns into Selena on the day of the fair, she gets her chance to set the mice free.
But when she hears that a sixth-grader named Selena is using her pet mice as part of a science experiment, Katie does her best to put a stop to it.
Katie can\'t wait for the school science fair