Plague Files

The devastating bubonic plague of the 1300s killed millions—but science sleuth Marnie and her trusted AI sidekick Glitch discover there's more to the story when they research the plague for a school assignment. How did the plague start, and how did it spread? How do scientists and doctors work today to stop the spread of similar infectious diseases? Marnie is on the case to learn about Black Death and what it taught humanity about disease, medicine, and the power of science. 

A fun graphic approach, diverse characters, and accessible text tell this thrilling story of medical history in a high-interest format.

Marnie's Medical Mysteries was developed in collaboration with Nipunie Rajapakse, M.D., pediatric infectious diseases physician at the Mayo Clinic Children’s Center. She completed a Master of Public Health at the Harvard T.H. Chan School of Public Health and previously worked as a consultant with the World Health Organization.

Mayo Clinic Press Kids creates empowering health and wellness content in partnership with pediatric experts. Proceeds from the sale of every book go to benefit important medical research and education at Mayo Clinic.