Princeton Institute for Advanced Study, dean's office.
After the cleaning lady poured some water into the plants on the window sill, she began to wipe the dust on the glass window.
She quickly completed her work and lifted her water bucket, about to walk out of the office.
When she was leaving, she looked at Professor Peter Goddard with a surprised look on her face.
Even though she didn't know a lot about academia, this was the first time in many years that she had seen such a distressed expression on the serious old man's face.
Of course, he only became a dean five or six years ago…