Allison opened her eyes. She felt strange. She glanced at the window. It was dark outside. 

How long had she been sleeping?

She moved her hand to the nightstand and grabbed her phone to check the time.  

When she unlocked her phone, she gasped. 

"Eighteen Missed calls!"

Her parents called her many times, and she was sleeping peacefully. How could she? She saw that her phone was on silent.

She remembered that she turned her phone on silent before entering the exam Hall and forgot to ...