They are coming for us

"Lio…I think they are coming for us." 

He heard Claudia's voice coming from somewhere far away. He was still zoned out but now the strange vision he saw vanished and subconsciously he could hear his surroundings. 

It took him a little while to zone back in and register what Claudia said and as soon as he did so, his head snapped in her direction. He saw her getting up from the ground, stumbling and trying to reach him with panicked expressions masking her strained features. 

"Who is coming?" He asked, standing up as well as he looked behind her but there was nothing in sight as far as his vision could wander. 

"I heard footsteps...I heard something." She was interrupted by her own violent cough and was about to fall on her knees when he caught her by her elbows.