"Ariana!" that morning was greeted by Amber's loud shout echoing through the empty apartment room. Amber half ran, approaching the bed where Ariana was curled up like a fetus, her body trembling violently. "Ariana?" she called again on the bedside. Her faint voice couldn't hide her panic. Amber knew what was happening; this was not unfamiliar to her, although it rarely occurred. Ariana slowly opened her eyes, gazing at her friend and then smiled gently.

"Calm down," she whispered softly, ...