From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Happy half birthday to Karen!Karen is the youngest in her class. everyone teases her and calls her a baby. But soon Karen is going to turn seven and a half. She decides to throw herself a half birthday party. Karen’s friends think the party is a big pain. They do not like getting half-filled goody bags or playing games halfway. They think Karen is bossy. Now what is Karen going to do?