Greta and her friend Mari are going into the sixth grade this year! But when they get to the first day of school, that's when disaster strikes. Tiffy, the "boss of the whole sixth grade," is the bully, from flipping her hair to talking trash about her peers. But will Greta and Mari survive their sixth-grade year with the bullies and adjusting? They aren't even in the same classes! Find out the answer by reading Boss of the Whole Sixth Grade by Ann Herrick.