Grendels arm
If its after the fight with Grendel's Mother then he took Grendel's head, the sword-hilt of the sword he used to slay Grendel's mother and cut off Grendel's head, and of course Hrunting the sword he originally brought to slay Grendel's Mother which was ineffective against her tough hide.
burns a bottom
yes a river can carry water from a lake to a ocean.
In "Beowulf," the deer is described as being cornered at the lake by the hunters. The deer is desperate and exhausted, realizing it has no escape. It then turns to face its attackers, ready to fight for its life.
The story uses dramatic irony when Beowulf fights Grendel's mother. When the Geats and the Danes stand near the shore of the lake, they see blood rise to the surface and automatically assume that Beowulf was killed by Grendel's mother while the audience knows that Beowulf killed Grendel's mother and it is her blood that is rising to the surface. Verbal irony is used when Beowulf enters the lake and the author refers to Beowulf as her "guest" even though Beowulf has actually come to kill her.
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.
Beowulf first encounters Grendel's mother in her underwater lair beneath a lake after she attacks Heorot Hall in revenge for the death of Grendel.
Infertility challenges Beowulf because it threatens the continuation of his lineage and his legacy. Without heirs to carry on his name and reputation, Beowulf's achievements may be forgotten, and his kingdom left vulnerable to potential threats from rival clans or enemies.
In Beowulf, the lake is where the formidable monster Grendel's mother dwells. It is described as murky and dark, with a bottom that reaches to the depths of the Earth. The waters are said to be inhabited by various sea creatures, adding to its eerie and dangerous atmosphere.
The warriors lost hope because they saw that Beowulf was being attacked by Grendel's mother underwater and it appeared that he was in grave danger. They feared that they were witnessing Beowulf's defeat and were not sure if he would emerge victorious.
Hrothgar's men left the side of the lake and went home because they were afraid of Grendel, a monstrous creature that attacked them at night. They believed the hall, Heorot, was cursed and deserted it for their safety.
Beowulf and Grendel's mother fought in her underwater lair at the bottom of a dark, eerie mere (a kind of lake). The battle took place in the depths of the water, adding to the suspense and danger of the encounter.
Grendel's mother is said to have ruled over the lake for about 50 years. She was a powerful and vengeful figure in the epic poem Beowulf.