Author's Note
Susannah Simon was involved in an accident. How it happened, she was not sure. However, she had been stuck in that hallway for as long as she could remember. Until fellow mediator Jesse showed up, telling her that there has been a hiatus: the connection between her and her body had broken, and she had no way to return. Chances are, Suze Simon, who'd been so hard to kill, was effectively dead already.
This took place after Twilight, when Susannah is getting to a classroom between periods, when she collapsed.