This was not totally obvious at first, and so she clambered up into the space above the ceiling and got a grip on one of those zigzaggy trusses and used it to crab-walk away from the safe house and toward the core of the building. The elevator shafts were nearby, but they were clad in concrete and there was no obvious way to get inside of them; even if she had been able to do so, it wasn’t clear how that would have helped her.