A clever, brilliantly illustrated picture book about family, compromise, and the sacrifices siblings make for one another.A KIRKUS REVIEWS BEST PICTURE BOOK OF THE CENTURY • One of The Atlantic’s 65 Essential Children’s BooksRubina has been invited to her first birthday party, and her mother, Ami, insists that she bring her little sister, Sana, along. Rubina is mortified, but she can't convince her mom that you just don't bring your younger sister to your friend's party. When both girls go, not only does Sana demand to win every game, but she steals Rubina's prized party favor: a red lollipop. What's a fed-up big sister to do?This fresh and surprising story captures the complicated dynamic of sibling relationships, and shows how a little bit of patience and understanding can transform these special bonds into lifelong friendships.