Cluster — 18 works.
Defining concepts
Revenge (14), Verse Drama (14), Avenger (11), Tragedy (11), Blood (9), Blank Verse (8), Guilt (7), Villain (7), Power and Corruption (7), Deception (6), Appearance vs Reality (6), Romantic Love (5), Swords and Weapons (5), Concealment Hidden Identity (5), Court (5)