Calico Critters A Surprise Birthday Party for Olivia It is Olivia's fourth birthday, and her sister Ashley has planned a surprise for her Features grey bear sisters ashley and olivia, birthday cake, tray and candles, balloons, soda bottles, cups, party hats, gift boxes and party invitations Also includes storybook brochure Everything is here for imaginative pretend play Mix and match with other Calico Critters play sets