JJ is left in charge of his little sister, Jasmine, during half-term, whilst their mother is at work and has to devise games and outings to keep them both occupied. He sometimes feigns embarrassment - or exhaustion - with his role as baby-sitter, but in reality takes his responsibilities seriously. This picture book gives an affectionate portrait of two siblings in a one-parent family, with illustrations by Patrice Aggs that vividly convey the dynamics of that relationship.