In this charming easy-to-read companion to Pete Won't Eat, which earned starred reviews from Kirkus Reviews and School Library Journal, Pete's sister Rose is having a party. She promises Pete some cake if he will deliver invitations to her friends Nell, Don and Gert. What a good deal for Pete! Pete brings Nell and Don their notes, but he gets distracted and forgets all about Gert. On the day of the party, Pete's mistake causes many hurt feelings. Can Pete save the party -- and will he still get cake?