Horrible Harry and the Battle of the Bugs

In the 35th Horrible Harry book, Doug has a horrible problem: head lice!

When Doug discovers head lice in his hair, he's grossed out and embarrassed. Some of his classmates make fun of him for being dirty. Fortunately, with the help of good friends and the kind school nurse, Doug gets over his embarrassment, kills the bugs, and gets an award-winning science fair project out of the experience!