Book 7 of The Hidden Diary. More than ever, only-child Lucy wants a brother or sister. Serena has her brother, Roberto, and even Claudette has a new little sister from China. To make matters worse, Catalinas annual brother/ sister tandem bike event is approaching. But Lucy has no sibling to participate with her. Will she have to sit this one out?Byrd, Sandra is the author of 'One Plus One' with ISBN 9780764224874 and ISBN 0764224875.