Grendel and his father went to the kingdom of herot to eat all hrothgars men but king Hrothgar and his men kill the father of grendel and grendel saw it that's why he revenge to king Hrothgar and his men.Grendel ask a help to his mother who is a witch to give him a spell and his mother give him and then grendel kill so many people who live in herot and ruin it.and king Hrothgar ask a help to other kingdom in higlacs kingdom and Beowulf help them and Beowulf cut Grendel's arm and claws and Grendel's blood is continuously flowing that's the reason why grendel die and the claws and arm of grendel is hanging in the gate of the kingdom