A brand-new story starring the unlikely best friends of The Butterfly Club, published specially for World Book Day 2017, from much-loved and bestselling author Jacqueline Wilson.

Selma can't wait to go on holiday with her best friend forever, Tina. But a holiday with Tina means a holiday with her triplet sisters, too - and it's not long before Selma feels like the odd one out. Can their shared love of butterflies bring Selma and Tina together again?