Karen's School Bus is the 53rd book in the Baby-Sitters Little Sister series.
Back Cover SummaryEdit
Karen is going to ride the bus to school now. Hooray! But Karen is so excited about the school bus she gets a tummy ache. And then something awful happens on the bus.
Now all the kids won't stop teasing Karen. They call her mean names. Karen hates the bus! Won't anyone help her?