Catalyst • [Variation] • The item whose presence always pushes the story forward toward the climax • The Catalyst is what creates breakthroughs and seems to accelerate the throughline it is affecting. In both the Objective and Subjective Stories there occur dramatic “log-jams” when things seem to be approaching a halt. This is when the Catalyst is necessary, for its introduction will either solve the puzzle that’s holding things up or else make the puzzle seem suddenly unimportant so the story can continue.