she wanted revenge for Beowulf killing grendel
She gave Beowulf Grendels claw.
Grendel's mother takes his claw as a form of revenge against Beowulf for killing her son. It serves as a symbolic gesture to challenge Beowulf and his companions and to further escalate the conflict between them.
Grendel's Claw (Arm) & Hroghgar's Closest Friend
A swamp
he dies later on
Underwater, in a lake.
Under water, where Grendel's mother lived.
To steal back Grendels arm
The Sword breaks
i know that it starts with a "C" but i forgot his name
grendels mother goes to heorot to avenge her sons death
Beowulf followed Grendel's mother's tracks to her underwater lair after she attacked Heorot. He dove into the lake and ultimately battled and killed her with the help of a magical sword he found in her lair.