Code B

Silvia found the boy's behaviour very strange and weird. She was trying very hard to figure out what was wrong. 

The little boy kept on making hand gestures, asking Silvia to go away but when Silvia kept on trying to enter the room again and again, the boy picked up a paper holder from the desk and threw it towards Silvia. 

When the medium-sized paper holder hit Silvia's shoulder, she winced in pain. "Damn it, what the-"

Just then the boy started coughing vigorously and collapsed on the floor. 

Silvia widened her eyes in shock and quickly rushed inside the room, ignoring the acute pain on her shoulder.

When Silvia somehow managed to enter the room, she coughed vigorously. The smoke inside the room was very thick and suffocating. 

Covering her mouth, she quickly made her way toward the little boy who was lying on the ground in an unconscious state. 

Silvia's heart sank when she touched the little boy's arm. It was as cold as ice.