Beowulf set out on his journey to avenge his people.
Your armor will protect you.
Beowulf jumps into the water and swims for hours looking for the cave where he finds Grendel's mother.
Beowulf finds the cave and confronts Grendel's mother. He strikes her with his sword, but it does not pierce through her skin.
How are you still alive?
Grendel's mother has Beowulf on the ground and she tries to stab him with a dagger, but Beowulf's armor is protecting him from any wounds.
Once Beowulf was up and fighting again he saw a sword on the wall of the cave. The sword had been hammered and blessed by giants. He raised his arms high over his head and struck down with all his might and caught her in the neck. She laid lifeless on the cave floor.
Beowulf found Grendel lifeless in a corner. Beowulf cut off Grendel's head and took it with him along with the hilt of the sword he had used to kill Grendel's mother.