Your role in the Tangent Universe
The Author of the Book
You wrote the rules. Now you wait by the mailbox.
You have seen a Tangent Universe before, and you wrote down what you learned so that the next Receiver would know what to do. Nobody reads it until they have to. You spend your days walking to the mailbox and back, checking for a letter that only arrives in a universe that no longer exists. You are the reason the world is still here.
In the film: Roberta Sparrow.
Your role, and how the film ends for it.