Anna Tomical must find and disable the microscopic Sickbot that's been injected in her great uncle's body by his evil rival. To save him, Anna and her friend Hugh use the incredible shrinking Microship to enter her uncle's body. Once there, they wield their knowledge of the human body to track down the Sickbot and undo the damage it's inflicting. Readers, too, must use their knowledge of body systems--and the concepts they learn from the Microship's computer--to help the characters accomplish their mission. This lively adventure is a perfect way to boost enthusiasm for biology!