The mere mention of Grendel the classic monster from the Old English, Anglo-Saxon era epic poem, Beowulf is enough to unlock a portal buried deep within the brain of every former English student.

Thane: They look like marks made by giant claws, my Lord. Beowulf: They must be the work of Grendel. Hrothgar: Beowulf - I am Hrothgar! You are welcome in our land but you have come at a sad time.

Grendel is an adaptation of the 1971 John Gardner novel of the same name, which retells the Old English epic poem Beowulf ...