In Beowulf the castle Heorot is empty at night because?
The reason for this is that everyone is afraid of Grendel.
The hall had been built by Hrothgar as a feasting place for his warriors. The noise they made as they reveled each night had annoyed and pained Grendel.
To try to stop that from happening, Grendel had come to the the hall and killed many warriors. He killed thirty just in the first night and then came back for more the next night.
The warriors did not want to be killed in their sleep so Heorot sat empty for twelve years.
In the epic poem "Beowulf," the hero warrior Beowulf goes to the land of Hrothgar after learning about a beast named Grendel. Grendel kills men by ripping them to shreds and devours them. The castle of the ruler Hrothgar and his family was originally a place where his warriors held festivities. They would drink, dance, and be loud and merry. Grendel began attacking the men when they left into the night. The beast eventually goes as far as to enter the castle killing and devouring the men. Everyone is frightened to return to the castle. For 12 years the castle has remained empty as it states in the poem.