"Twelve-year-old Astrid has always done everything with her best friend Nicole. So when Astrid signs up for roller derby camp, she assumes Nicole will too. But Nicole signs up for dance camp with a new friend instead, and so begins the toughest summer of Astrid's life. There are bumps and bruises as Astrid learns who she is without Nicole ... and what it takes to be a strong, tough roller girl."--

When they get lost in a strange city during roller derby camp, the Daredevils lose their confidence and their ability to work as a team, but shy Tomoko's wilderness skills and navigational know-how help them escape the urban jungle.

Eleven-year-old Dorothy Moore and her younger sister, Sam, must move into their eccentric grandmother's funeral home, and it is tough dealing with G-Ma Sally and a new middle school but things get easier when Dorothy discovers G-Ma's old roller skates and leads a roller derby team to the championships.