Definition: Cassicus is a character from the novel "To Kill a Mockingbird" by Harper Lee. In the story, the main character Scout Finch is a girl who has been raised by her mother and stepfather Atticus Finch. They are in a small town called Maycomb, Alabama, where a man named Tom Robinson is being tried for raping a white woman. Scout's friend Jem Finch is a young boy who is also from the town of Maycomb. When Tom is arrested