"Sam! Sam! " Emma yelled while shaking him violently.

Sam was having a nightmare and he was shaking and screaming like a victim of severe electric shock.

He was shouting "Natalie. " while gasping for breath and Emma woke him up.

"Sam listen to me." began Emma with her hands going up and down.

"Can you hear me? " she said to his face as he stared at her blankly.

"Calm down. " she comforted him.

Sam had woken up already but his body was still shivering. His mouth was shaking and Emma could hear his teeth clattering.

She quickly got out of bed, pulled the large sheet underneath his...