Something, or more precisely someone, is looking at her from the world inside the mirrors! She cannot make up the profile of the mysterious person as foggy mist shrouded the smooth surface of the mirrors.
Thalia looked behind her. No matter how hard she searched, there's absolutely nothing standing closer to her vicinity, nothing at all except her. Yet, when Thalia turned back to the mirror, staring at her reflection, she gasped in shock as the mysterious person slowly approached her. Their distance is only at arm's length. This is too closer for her own liking, whereas she cannot even see the woman! She could only sense a subtle breeze, which resembled someone's breathing, blows on the base of her slender neck.
Tingling feeling crept all over her body. Her skin is crawled by something unpleasant, and goosebumps raked on her spine.