The real monster in Frankenstein is arguably Victor Frankenstein himself, who created and abandoned the creature and then refused to take responsibility for its actions.
An epic poem is a lengthy narrative poem that tells the story of a heroic journey or quest, often featuring larger-than-life characters and supernatural elements.
Hamlet is a tragedy because it tells the story of a character with a fatal flaw who brings about his own downfall and leads to the downfall of others around him.