Perse and her twin, Portia, are about to turn 11. How will they celebrate their birthday? Will shy Perse want the same outrageous party as Portia? Birthday Bonanza is full of surprises.Follow the next hilarious Totally Twins adventure as Perse and Portia plan their party and receive a few unexpected presents. Part of a four book series, Totally Twins is a comical series following the lives of twins Persephone and Portia as they navigate sibling rivalry, school and adjusting to life in a single parent family. Ideal for readers aged 8+ and fans of Tracy Beaker.