The Ball, which is held by the Wise Old Owl on an unspecified summer night, is the "best dance of the year," according to the book; all of the Bellflowers plan to go when that book's events take place.
- Huriet, Geneviève and Loïc Jouannigot. Periwinkle at the Full Moon Ball. Beechwood Bunny Tales. Trans. MaryLee Knowlton, from Le premier bal d'Agaric Passiflore. ISBN 0-8368-0525-9. Milwaukee: Gareth Stevens, 1991. Accessed on May 20, 2008.
- "Le premier bal d'Agaric." The Bellflower Bunnies. Eric Berthier, director. TF1. November 10, 2004.