Tiny creatures lurk in the warm soil of the American South, waiting to attack a human victim. Once they invade through bare skin, the parasites travel deep into the gut of the unsuspecting host, where they suck blood like a vampire.

Hookworm takes center stage in YALSA-winner Gail Jarrow’s third book of the Medical Fiascoes series. In this exciting medical mystery, she reveals how a parasite slowly drained the energy and life from millions of southerners. Can early twentieth-century scientists and doctors uncover its secrets, fight back, and cure the victims?

Turn the page to meet the American Murderer …