Author James Frey refers to a crucible as “the container that holds the characters together as things heat up.” Characters caught in a crucible won’t declare a truce and quit. They’re in it till the end. The key to the crucible is that the motivation of the characters to continue opposing each other is greater than their motivation to run away. Or they can’t run away because they are in a prison cell, a lifeboat, an army, or a family.
