An image from the Fritz Kahn publication “Das Leben des Menschen”, vol. III (1928) appears in the graphic novel “The Invisible War”. The main character of the comic, which is set during World War I, is the nurse Annie Barnaby. While caring for a wounded soldier, she is infected by a life-threatening virus. The story, created by a team of creatives and scientists that includes illustrator Ben Hutchings, can be experienced on two levels. The first level describes events in a French field hospital and interactions of the medical staff and patients. On a second level and in a 4,000 x magnification, one can follow the process of Barnabys’ instestinal infection. The Kahn illustration is part of an extensive appendix that depicts the proportions of the human intestine and its length (about eight meters).