He was very concerned.The main character in "I Know About Germs" is modeled after the author's four year-old son, Dax, pictured here. In the book, we talk about new germs or novel germs, McVea said. The book tells the story of a little boy named Little Scientist who knows all about different types of germs. The I Know About Germs e-book and hardcopy, published by Auris Book Press, can now be purchased for less than $10. More information on Narwhal Sensory Box can be found on Instagram.