In a response of two to three sentences, the action described in the following lines that help show Grendel as a monster are "quickly laid hold of a shoulder asleep", "fit his bone prison the blood drink", and "he soon had the dead man's feet and hands to eating entirely".
In the following lines, Grendel goes through the procedure of feeding on an unconscious, defenseless victim. He then murders him and consumes him completely, leaving nothing behind.
Because of Grendel's murderous and violent tendencies, the reader is less inclined to feel sympathy for him after Beowulf vanquishes him. He fulfills the definition of an Anglo-Saxon monster and is also extremely comparable to contemporary monsters because he is shown as being greedy for death and blood.
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