Marnie's teacher has a unique assignment for the class--learn all they can about a disease that has been eradicated, smallpox Marnie teams up with her friend SJ and her trusty AI sidekick Glitch to gather the information. What was smallpox and how did it spread? How did scientists use inquiry and the tools of science to solve the mystery of smallpox? Finally, Maisie and her classmates learn how scientists were able to wipe out the disease, and how...