Where is Ellie’s joke trigger location?

1. Pittsburgh, before climbing on the bus.

2. Pittsburgh, second floor of the library.

3. In Pittsburgh, enter the area in front of the hotel and wait for Ellie to be in a daze.

4. In the hotel lobby, get the book and open the safe.

5. After leaving the sewer with the black brother, we arrived at the town and wandered around waiting.