Slaughter House?

Yoongi looked at the necklace in his hands, turning it over to see the engraving on the back, running his thumb over it.

P.JM

"Put it on," a faint, cold whisper rang in his ear, "let me protect you."

"What about the others?" He breathed out.

A shiver ran down his spine as a cold touch hit his cheek, cupping it. "We want to help too."

OR

Yoongi and a small group decide to spend a night in an abandoned house.