Answer:
metaphor? i'm not quite sure if you mean literary device or not. sorry, if this isn't the answer you're looking for, but i hope this helps you :)
Explanation:
Them is the topic of a text
Grendel attacks Heorot and devours the first warrior he encounters, when he tries to grab the second warrior, Grendel is shocked when the warrior grabs him back with great strenght (by the time the reader discovers this warrior was actually Beowulf).
