Aira walked toward the restroom, weaving through the sleeping passengers on the plane. The cabin lights had dimmed. Her steps slowed as her legs felt unusually heavy. She sensed a strange heat radiating around her. She looked down and realized there was a shadowy figure standing right behind her. Her heart began to race with a sudden wave of discomfort. Ahead, she spotted a flight attendant standing by the door of one of the airplane lavatories. She jogged toward the attendant, trying to ask for help. When she reached the smiling attendant, she explained that someone behind her seemed suspicious. But the attendant just smiled, not reacting at all. Confused, Aira dared to glance over her shoulder. The man in black behind her was now smiling, as if silently mocking her and enjoying the

