Astrid has always done everything with her best friend Nicole. So when Astrid falls in love with roller derby and signs up for a summer camp, she's sure Nicole will be right by her side - until Nicole signs up for ballet camp instead, with Astrid's biggest rival.

And so begins the hardest summer of Astrid's life, as she struggles to stay on her skates, to learn who she is without Nicole . . . and to find out what it takes to be a strong, tough, awesome roller girl.

"This spiky, winning graphic novel captures the bittersweetness of finding a new passion and saying goodbye to your former, more uncertain self" - New York Times

"A refreshing, witty story of trying, failing, reinvention, ambition, team spirit and how to be a decent friend" - Guardian

"Vivid and funny . . . The graphic format makes it fizz . . . And the contact sport of roller derby makes for a fascinating setting. Expressive, fearsomely physical and dominated by women, the author brilliantly conveys its appeal" - Observer

"Full of charm . . . Don't let this one roll past" - Kirkus

"Readers will stand up and cheer" - Publishers Weekly