Iris ties a pair of springs to her feet and starts bouncing around the house. But when she lands, she crashes all the way down to the center of the earth. Now, Ruby and her friends must go down to the center and try to find Iris.
La dernière lubie d’Iris - sauter le plus haut possible grâce à des ressorts sous ses chaussures - prouve qu’assez n’est jamais assez pour la fillette.
