```
Room 502 was definitely on the fifth floor, and the only way to access it seemed to be the staircase.
After returning to the lobby from the nurses' station, Lu Ban noticed the sky around him had completely darkened.
Walking to the entrance, he peered out of the glass doors.
The night was thick, so much so that even the nearby security booth was invisible, with no stars or moon veiling everything.
Lu Ban even wondered if, when the mission started, this place had already entered some kind of alternate space.
He didn't rashly step out of the hospital, wary of mission failure.
After checking the explosives strapped to the column, Lu Ban decided to eat something first.
He casually found a spot to sit and took out some water and compressed rations.
Man is iron, food is steel; without a full stomach, there's no strength to work.
Lu Ban ate his dry rations and drank water, filling his growling stomach.
