Further angered, Unferth declares that either he or Grendel will die that night in the cave. Grendel, however, says that he plans to carry Unferth back to the meadhall unscathed. Unferth swears he would rather kill himself, but Grendel points out that such an action would appear rather cowardly.
Answer:
The discovery may have been <u>accidental</u>.
Explanation:
The group of sailors were simply trying to cook food over fire, not create glass.