In an NFL season marred by violence, cheating, and commissioner incompetence, Cincinnati Bengals defensive tackle Devon Still and his four-year-old daughter Leah have been one of the lone inspiring stories on the year.

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During the summer Leah was in Stage Four of a rare pediatric cancer called neuroblastoma. Leah has fought the disease spectacularly in the months since.

The Bengals graciously kept Still on their practice squad after the preseason so that he could continue to receive the health care coverage for Leah's treatment. By mid-season, Still had made the team's game day roster and his daughter was a household name, an inspiration to millions.

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Now Still and Leah are using their public platform to publish an animated digital book called "I Am Leah Strong."

“I talked to my daughter and asked her if she wanted to do a children’s book to help kids who are fighting pediatric cancer now and kids who will be diagnosed in the future to help them with the transition from normal life to being in the hospital all the time,” Still told USA Today's For The Win on Thursday. “That book was written by her. I just had an outline of questions I wanted to ask her. Whatever answers she had I wrote in book form.”

"I Am Leah Strong" is due to be released next month on a website of the same name.

Learn more about Devon & Leah's journey below: