Startled, Sarah turned around to see a figure standing at the other end of the room. At first, Sarah felt relieved as she turned to see what appeared to be the figure of a woman looking back at her. But as the light shifted from the windows in the direction of the woman, her fear soon returned. As she stood frozen in disbelief, she stared at the woman, rubbing her eyes furiously as if the image before her was a mirage that would change or disappear completely. But with each time she reopened her eyes, the reality of what she was seeing only became clearer. This wasn’t a mirror or an optical illusion; ironically, the woman looking back at her from across the room was as real as she was. Apart from her uncontrollable trembling, Sarah stood frozen in her place as she stared at the woman. "She looks like me…", Sarah thought to herself. The woman looking back at her was not just similar to Sarah, in fact, apart from a slight difference in their clothing, you couldn’t tell them apart. Sarah was terrified. "Is she a long lost twin? Or a clone?", she pondered for a second before remembering the woman was looking directly at her. Sarah swallowed hard and, with a trembling voice, she managed to mutter, "Who—Who are you?"