Final answer:
Grendel is depicted as a creature of pure evil through his physical appearance, actions and behavior, relationships with other characters, and the author's direct statement.
Step-by-step explanation:
What specific details suggest that Grendel is a creature of pure evil?
- His physical appearance: Grendel is described as a monstrous creature with sharp teeth, claws, and green-tinged skin.
- His actions and behavior: Grendel is known for his brutal attacks on the Danes, devouring them and spreading fear and destruction.
- His relationships with other characters: Grendel has no positive relationships and is seen as a malevolent force by all.
- The author's direct statement: The poet describes Grendel as a descendant of Cain, a biblical figure associated with evil.