sentence: Some people escape to the space ship.
sentences_after: But, other stay to defend the town. They use the electric fences and land mines and guns to kill the little Grendels. After awhile the town gets too damaged to protect anymore. The people run away to a cave on a mountain. The Grendels follow them up a river and attack the cave.
concept_name: people
headings: The Legacy of Heorot Plot Summary
categories: 1987 books Science fiction books