At the door, Rose first took out a file with information on the community. "There is only one person living in this house. My colleague checked this detail, and confirmed that the resident is a male that tends to stay indoors. Nothing seems to be a problem."
"Which colleague came here? Tell him to come over." Li Du said as he knocked on the door.
Rose said in surprise. "What?"
"There is something wrong with this house." Li Du continued knocking.
Rose's body shuddered slightly. She suppressed her agitated emotions and asked, "Are you sure? You haven't even opened the door to see what's inside."
Li Du asked, "With such a wide gap in between the floor and the door, do you really think that I can't see what's inside?"
His increasingly rapid knocking finally alerted the three people on the second floor. The young white man threw away his cigarette butt calmly and opened a small, metal door leading to the attic. The two black males then crawled in.