In the novel Freak the Mighty, Kevin is succumbing to his lifelong illnesses caused by birth defects in the hospital. Kevin gives Max a blank notebook to remember the adventures they have had over the previous year.
Knowing that Kevin is incapable of much physical activity as a result of his condition, and that the previous year had been one of great growth and excitement for him, Max agrees to write down his memories of their adventures together. Without knowing it, Max has his final conversation with Kevin about the notebook, because, as Kevin wanted to have the stories recorded, he sent Max away to write them. When Max returns, Kevin has passed away from heart failure. Max is able to reminisce about the adventures they shared through the notebook and keeps his memories alive in the stories he wrote down.