He confronted and said it again, sir believe me no one is living on 3rd floor.Why would I lie to you,I'm having all the keys with me all time.I stood silent for few secs and then calmed down myself and thought of the possibilities that could had happened at 3rd floor,I decided to spend some more time with secretary to get some info,I grab 2 beers from my flat and came back to his house,as I lived alone so no body bothered where would I'm going in the night.Now we both were drinking and talking,I asked very casually about the history of that building specially 3rd floor,now he started moving his cold freezed tountge,he informed me that in days of possession of building a small family came to live in F3 on 3rd floor, everything was normal till the first winter came,that weird smell started coming unknowingly on 3rd floor,At that time only 3 families were living in the building, building remains dead silent in the night.It was December,winter was on its peak,one night the kid(7 years old) of that family heard something weird into the wall,it was like something crawling inside the walls,he informed his mom but she didn't bothered and took it very casually.But the family was still confused about smell,they tried to find it out but no success,they even called the pest controller and spread scented pesticide all over but still the smell was again there after few hours,Then after family started experiencing some paranormal activities like auto running of lift, knocking on doors, approaching footsteps,all were happening on alternate days,, family was tensed and confused too,,but the kid was really sacred bcos he was the only one who could hear someone crawling inside the wall,now the boy started believing that there is someone inside the wall who is damm alive,but he wasn't sure what may it is.The fog started and cold was on peak,one night mother was cooking dinner and father was not yet returned from work,the boy heard the sound of lift coming up,he thought it was his father coming and went out side of the door, the lift stopped on 3rd floor and the doors of the lift opened,he saw his father inside the lift. father was standing still and calling him inside,the boy went inside and the doors of the lift closed quickly,the lift started moving up and down abnormally,the mother looked for boy but couldn't see him,she searched inside outside but couldn't find him, shouted his name but still no reply,now she scared and called her husband, meanwhile she tried to look into the lift but suddenly the power cut occurred and this make her really scared, switched on the flash light and started beating the door of lift,now few others who were living on other floors came to sort out wats going on,they all tried hard,after 10 mins they heard the boy crying out of pain,it was inside the lift, mother was stunned..and could just asked others for help.one suggested to call the mechanic who can open the door forcefully,. Husband while coming home brought the mechanic with him,with his tools he opened the door but what they saw,it tear their heart apart from chest..The boy was lying on the floor fainted with his head down,he was bathed in the blood and his bones of both legs were broken,they took him to the hospital,he was fine after 2 days but could never walk again.The family decided to leave the building.

What I just heard was hard to believe but for me there is always a reason behind every action.And Iam going to find out the Reason in final chapter.