Mark Twain demonstrates man's inhumanity to man throughout his novel The Adventures of Huckleberry Finn. This book is about Huck's adventure as he escapes from his cruel father and helps a run away slave to become free. He encounters several heartless people and has to make many important decisions. He is deceived many times but he ends up safe and away from those that want to hurt him. Inhumanity is shown through the things that some of the people whom Huck meets do to him as well as others. Huck also does some cruel things to other people in this novel.

The things Pap does to Huck are heartless. Pap takes him away from a good life and forces him to stay in a cabin. Huck is locked in the cabin, sometimes for days. "Once he locked me in and was gone three days. It was dreadful lonesome...