Maya borrows a skull made of sugar from her grandmother to show in her presentetion of Mexico. Maya promises her grandma that she will not let anything bad happen to it. Maya ends up loosing the calvera and decides that she should go look for it. She looses it because she switched backpacks with somebody else by accident. After she finds her backpack she jumps excitedly and accidently drops the ""Calavera"" so it breaks. At the end Maya tells Abuela Elena that she broke it and the grandmother agrees that they should do another one together.