The library closed at ten every night.

Madelyn arrived at the library at seven o'clock in the evening, and there were still a few people inside.

She sat in her usual spot near the window and opened her workbook.

Eventually, the lights in the library went off one by one. The librarian approached her and said, "Hey, the library's closing now."

Madelyn was not surprised that Forrest did not come.

Only after leaving the school did she remember that her home was under renovation. Her maids and driver were all not at home and the last bus had already left.

So, Madelyn could only take a taxi back to the apartment.

She only arrived at the apartment close to eleven at night.

When she raised her head to look, the lights on the twelfth floor were all switched off. She thought all of them were probably sleeping.

Madelyn then took the elevator. When she entered the door lock code, it showed it was incorrect. She tried three times, and it was still wrong.

She thought, 'Why is it incorrect?