Final answer:
Before Grendel's attacks, Herot was peaceful, but after the attacks, it became chaotic.
Step-by-step explanation:
Before Grendel's attacks, Herot was peaceful. It was described as a magnificent mead hall where the warriors would gather and celebrate. The atmosphere was joyful and filled with feasting, singing, and storytelling. However, after Grendel's attacks, Herot became chaotic and filled with fear. Grendel's savage assaults caused the warriors to lose their sense of security and created a constant state of terror within the hall.