Kill Switch by Penelope Douglas

But everything sounded distant. The cries and yelps. The
music beyond the walls and down other hallways.
“Hello?” I said. “How…how do I get out?”
I only fell a few feet. Where the hell was I? My friends
were right on the other side of one of these walls.
“Hello!” I shouted. “Help!”
Was I alone in here? I trailed down the walls, feeling for a
way out. God, I hope so. I wanted my friends, but I didn’t
want anyone else. I was having a blast a minute ago, but
now… This changed things. How would I get away? Or find
my frickin’ way out?
A clink pierced the silence behind me, and I froze.
“Hello?”
Was I alone? That sounded like a chain.
I shuffled down the wall, searching for the door—if it even
was a real door and not a trap door—and a chill crawled up my
shoulder. I pulled up my sweater to cover the bare skin, but it
just fell down again.
I sucked in a deep breath, belting out, “Isa! Jade!”
But then, behind me, a chain clanked with another like
there was wind, but I didn’t feel a draft.
I whipped around, shooting out my hands.
“Hello?” I demanded. “Who’s there?”
Are you going to hurt me?
I don’t know.
Do you want to?
Kind of.
A silvery sting throbbed between my legs, and I clenched
my thighs to get control of myself. Fuck.
Safe word. What was the safe word?
Quarter. I let out a breath, relieved I’d remembered it.
Thank God.